Home / 753,787.60-1,128,713.10-486,098.80

Finding the Fourth Proportional to 753,787.60, 1,128,713.10 and 486,098.80

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Solution

The fourth proportional to 753,787.60, 1,128,713.10 and 486,098.80 is: 727,878.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,787.60 : 1,128,713.10 = 486,098.80 : x
  2. Step 2: Convert to fraction form
    753,787.60/1,128,713.10 = 486,098.80/x
  3. Step 3: Cross multiply
    753,787.60x = 1,128,713.10 × 486,098.80
  4. Step 4: Simplify right side
    753,787.60x = 548,666,083,454.28
  5. Step 5: Solve for x
    x = 548,666,083,454.28/753,787.60
  6. Step 6: Final answer
    x = 727,878.89

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1.5x scale

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.