Home / 755,715.30-1,130,948.55-519,519.30

Finding the Fourth Proportional to 755,715.30, 1,130,948.55 and 519,519.30

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Solution

The fourth proportional to 755,715.30, 1,130,948.55 and 519,519.30 is: 777,474.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    755,715.30 : 1,130,948.55 = 519,519.30 : x
  2. Step 2: Convert to fraction form
    755,715.30/1,130,948.55 = 519,519.30/x
  3. Step 3: Cross multiply
    755,715.30x = 1,130,948.55 × 519,519.30
  4. Step 4: Simplify right side
    755,715.30x = 587,549,599,032.02
  5. Step 5: Solve for x
    x = 587,549,599,032.02/755,715.30
  6. Step 6: Final answer
    x = 777,474.80

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Double scale
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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.