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Finding the Fourth Proportional to 663,296.60, 992,828.10 and 523,328.60

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Solution

The fourth proportional to 663,296.60, 992,828.10 and 523,328.60 is: 783,322.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,296.60 : 992,828.10 = 523,328.60 : x
  2. Step 2: Convert to fraction form
    663,296.60/992,828.10 = 523,328.60/x
  3. Step 3: Cross multiply
    663,296.60x = 992,828.10 × 523,328.60
  4. Step 4: Simplify right side
    663,296.60x = 519,575,339,613.66
  5. Step 5: Solve for x
    x = 519,575,339,613.66/663,296.60
  6. Step 6: Final answer
    x = 783,322.78

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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.