Home / 942,311.90-1,300,400.39-512,593.13

Finding the Fourth Proportional to 942,311.90, 1,300,400.39 and 512,593.13

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Solution

The fourth proportional to 942,311.90, 1,300,400.39 and 512,593.13 is: 707,383.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    942,311.90 : 1,300,400.39 = 512,593.13 : x
  2. Step 2: Convert to fraction form
    942,311.90/1,300,400.39 = 512,593.13/x
  3. Step 3: Cross multiply
    942,311.90x = 1,300,400.39 × 512,593.13
  4. Step 4: Simplify right side
    942,311.90x = 666,576,310,695.81
  5. Step 5: Solve for x
    x = 666,576,310,695.81/942,311.90
  6. Step 6: Final answer
    x = 707,383.94

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Double scale
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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.