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Finding the Fourth Proportional to 651,348.80, 977,023.20 and 539,374.40

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Solution

The fourth proportional to 651,348.80, 977,023.20 and 539,374.40 is: 809,061.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,348.80 : 977,023.20 = 539,374.40 : x
  2. Step 2: Convert to fraction form
    651,348.80/977,023.20 = 539,374.40/x
  3. Step 3: Cross multiply
    651,348.80x = 977,023.20 × 539,374.40
  4. Step 4: Simplify right side
    651,348.80x = 526,981,302,286.08
  5. Step 5: Solve for x
    x = 526,981,302,286.08/651,348.80
  6. Step 6: Final answer
    x = 809,061.60

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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.