Home / 445,564.72-667,257.02-402,385.17

Finding the Fourth Proportional to 445,564.72, 667,257.02 and 402,385.17

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Solution

The fourth proportional to 445,564.72, 667,257.02 and 402,385.17 is: 602,593.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,564.72 : 667,257.02 = 402,385.17 : x
  2. Step 2: Convert to fraction form
    445,564.72/667,257.02 = 402,385.17/x
  3. Step 3: Cross multiply
    445,564.72x = 667,257.02 × 402,385.17
  4. Step 4: Simplify right side
    445,564.72x = 268,494,329,426.39
  5. Step 5: Solve for x
    x = 268,494,329,426.39/445,564.72
  6. Step 6: Final answer
    x = 602,593.33

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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.