Home / 901,209.36-1,243,650.12-493,301.20

Finding the Fourth Proportional to 901,209.36, 1,243,650.12 and 493,301.20

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Solution

The fourth proportional to 901,209.36, 1,243,650.12 and 493,301.20 is: 680,745.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    901,209.36 : 1,243,650.12 = 493,301.20 : x
  2. Step 2: Convert to fraction form
    901,209.36/1,243,650.12 = 493,301.20/x
  3. Step 3: Cross multiply
    901,209.36x = 1,243,650.12 × 493,301.20
  4. Step 4: Simplify right side
    901,209.36x = 613,494,096,576.14
  5. Step 5: Solve for x
    x = 613,494,096,576.14/901,209.36
  6. Step 6: Final answer
    x = 680,745.37

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Half scale
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Double scale
Find fourth proportional to 901,210.36, 1,243,651.50 and 493,302.20
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.