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Finding the Fourth Proportional to 609,464.70, 912,123.45 and 534,815.10

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Solution

The fourth proportional to 609,464.70, 912,123.45 and 534,815.10 is: 800,403.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,464.70 : 912,123.45 = 534,815.10 : x
  2. Step 2: Convert to fraction form
    609,464.70/912,123.45 = 534,815.10/x
  3. Step 3: Cross multiply
    609,464.70x = 912,123.45 × 534,815.10
  4. Step 4: Simplify right side
    609,464.70x = 487,817,394,124.10
  5. Step 5: Solve for x
    x = 487,817,394,124.10/609,464.70
  6. Step 6: Final answer
    x = 800,403.03

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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.