Home / 747,187.36-1,120,660.72-214,587.28

Finding the Fourth Proportional to 747,187.36, 1,120,660.72 and 214,587.28

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Solution

The fourth proportional to 747,187.36, 1,120,660.72 and 214,587.28 is: 321,846.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,187.36 : 1,120,660.72 = 214,587.28 : x
  2. Step 2: Convert to fraction form
    747,187.36/1,120,660.72 = 214,587.28/x
  3. Step 3: Cross multiply
    747,187.36x = 1,120,660.72 × 214,587.28
  4. Step 4: Simplify right side
    747,187.36x = 240,479,535,707.64
  5. Step 5: Solve for x
    x = 240,479,535,707.64/747,187.36
  6. Step 6: Final answer
    x = 321,846.36

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.