Home / 676,861.60-1,015,292.40-487,904.80

Finding the Fourth Proportional to 676,861.60, 1,015,292.40 and 487,904.80

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Solution

The fourth proportional to 676,861.60, 1,015,292.40 and 487,904.80 is: 731,857.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,861.60 : 1,015,292.40 = 487,904.80 : x
  2. Step 2: Convert to fraction form
    676,861.60/1,015,292.40 = 487,904.80/x
  3. Step 3: Cross multiply
    676,861.60x = 1,015,292.40 × 487,904.80
  4. Step 4: Simplify right side
    676,861.60x = 495,366,035,363.52
  5. Step 5: Solve for x
    x = 495,366,035,363.52/676,861.60
  6. Step 6: Final answer
    x = 731,857.20

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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.