Home / 751,505.38-1,037,120.25-445,762.78

Finding the Fourth Proportional to 751,505.38, 1,037,120.25 and 445,762.78

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Solution

The fourth proportional to 751,505.38, 1,037,120.25 and 445,762.78 is: 615,178.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    751,505.38 : 1,037,120.25 = 445,762.78 : x
  2. Step 2: Convert to fraction form
    751,505.38/1,037,120.25 = 445,762.78/x
  3. Step 3: Cross multiply
    751,505.38x = 1,037,120.25 × 445,762.78
  4. Step 4: Simplify right side
    751,505.38x = 462,309,604,913.11
  5. Step 5: Solve for x
    x = 462,309,604,913.11/751,505.38
  6. Step 6: Final answer
    x = 615,178.04

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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.