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Finding the Fourth Proportional to 609,793.60, 914,690.40 and 525,812.80

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Solution

The fourth proportional to 609,793.60, 914,690.40 and 525,812.80 is: 788,719.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,793.60 : 914,690.40 = 525,812.80 : x
  2. Step 2: Convert to fraction form
    609,793.60/914,690.40 = 525,812.80/x
  3. Step 3: Cross multiply
    609,793.60x = 914,690.40 × 525,812.80
  4. Step 4: Simplify right side
    609,793.60x = 480,955,920,357.12
  5. Step 5: Solve for x
    x = 480,955,920,357.12/609,793.60
  6. Step 6: Final answer
    x = 788,719.20

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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.