Home / 787,657.90-1,178,862.45-724,672.30

Finding the Fourth Proportional to 787,657.90, 1,178,862.45 and 724,672.30

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Solution

The fourth proportional to 787,657.90, 1,178,862.45 and 724,672.30 is: 1,084,593.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,657.90 : 1,178,862.45 = 724,672.30 : x
  2. Step 2: Convert to fraction form
    787,657.90/1,178,862.45 = 724,672.30/x
  3. Step 3: Cross multiply
    787,657.90x = 1,178,862.45 × 724,672.30
  4. Step 4: Simplify right side
    787,657.90x = 854,288,963,025.14
  5. Step 5: Solve for x
    x = 854,288,963,025.14/787,657.90
  6. Step 6: Final answer
    x = 1,084,593.91

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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.