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Finding the Fourth Proportional to 609,634.20, 912,377.70 and 534,984.60

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Solution

The fourth proportional to 609,634.20, 912,377.70 and 534,984.60 is: 800,657.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,634.20 : 912,377.70 = 534,984.60 : x
  2. Step 2: Convert to fraction form
    609,634.20/912,377.70 = 534,984.60/x
  3. Step 3: Cross multiply
    609,634.20x = 912,377.70 × 534,984.60
  4. Step 4: Simplify right side
    609,634.20x = 488,108,018,883.42
  5. Step 5: Solve for x
    x = 488,108,018,883.42/609,634.20
  6. Step 6: Final answer
    x = 800,657.21

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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.