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Finding the Fourth Proportional to 638,443.62, 954,841.77 and 567,861.84

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Solution

The fourth proportional to 638,443.62, 954,841.77 and 567,861.84 is: 849,281.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,443.62 : 954,841.77 = 567,861.84 : x
  2. Step 2: Convert to fraction form
    638,443.62/954,841.77 = 567,861.84/x
  3. Step 3: Cross multiply
    638,443.62x = 954,841.77 × 567,861.84
  4. Step 4: Simplify right side
    638,443.62x = 542,218,204,421.06
  5. Step 5: Solve for x
    x = 542,218,204,421.06/638,443.62
  6. Step 6: Final answer
    x = 849,281.26

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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.