Home / 581,400.09-802,151.78-339,508.17

Finding the Fourth Proportional to 581,400.09, 802,151.78 and 339,508.17

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Solution

The fourth proportional to 581,400.09, 802,151.78 and 339,508.17 is: 468,415.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    581,400.09 : 802,151.78 = 339,508.17 : x
  2. Step 2: Convert to fraction form
    581,400.09/802,151.78 = 339,508.17/x
  3. Step 3: Cross multiply
    581,400.09x = 802,151.78 × 339,508.17
  4. Step 4: Simplify right side
    581,400.09x = 272,337,081,192.50
  5. Step 5: Solve for x
    x = 272,337,081,192.50/581,400.09
  6. Step 6: Final answer
    x = 468,415.96

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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.