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Finding the Fourth Proportional to 648,269.80, 972,404.70 and 558,068.20

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Solution

The fourth proportional to 648,269.80, 972,404.70 and 558,068.20 is: 837,102.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,269.80 : 972,404.70 = 558,068.20 : x
  2. Step 2: Convert to fraction form
    648,269.80/972,404.70 = 558,068.20/x
  3. Step 3: Cross multiply
    648,269.80x = 972,404.70 × 558,068.20
  4. Step 4: Simplify right side
    648,269.80x = 542,668,140,600.54
  5. Step 5: Solve for x
    x = 542,668,140,600.54/648,269.80
  6. Step 6: Final answer
    x = 837,102.30

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Similar ratio
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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.