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Finding the Fourth Proportional to 581,658.80, 870,414.60 and 403,329.20

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Solution

The fourth proportional to 581,658.80, 870,414.60 and 403,329.20 is: 603,555.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    581,658.80 : 870,414.60 = 403,329.20 : x
  2. Step 2: Convert to fraction form
    581,658.80/870,414.60 = 403,329.20/x
  3. Step 3: Cross multiply
    581,658.80x = 870,414.60 × 403,329.20
  4. Step 4: Simplify right side
    581,658.80x = 351,063,624,286.32
  5. Step 5: Solve for x
    x = 351,063,624,286.32/581,658.80
  6. Step 6: Final answer
    x = 603,555.94

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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.