Home / 723,899.59-999,028.75-417,988.87

Finding the Fourth Proportional to 723,899.59, 999,028.75 and 417,988.87

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Solution

The fourth proportional to 723,899.59, 999,028.75 and 417,988.87 is: 576,851.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,899.59 : 999,028.75 = 417,988.87 : x
  2. Step 2: Convert to fraction form
    723,899.59/999,028.75 = 417,988.87/x
  3. Step 3: Cross multiply
    723,899.59x = 999,028.75 × 417,988.87
  4. Step 4: Simplify right side
    723,899.59x = 417,582,898,310.01
  5. Step 5: Solve for x
    x = 417,582,898,310.01/723,899.59
  6. Step 6: Final answer
    x = 576,851.96

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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.