Home / 727,557.60-1,091,336.40-715,747.80

Finding the Fourth Proportional to 727,557.60, 1,091,336.40 and 715,747.80

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Solution

The fourth proportional to 727,557.60, 1,091,336.40 and 715,747.80 is: 1,073,621.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,557.60 : 1,091,336.40 = 715,747.80 : x
  2. Step 2: Convert to fraction form
    727,557.60/1,091,336.40 = 715,747.80/x
  3. Step 3: Cross multiply
    727,557.60x = 1,091,336.40 × 715,747.80
  4. Step 4: Simplify right side
    727,557.60x = 781,121,627,359.92
  5. Step 5: Solve for x
    x = 781,121,627,359.92/727,557.60
  6. Step 6: Final answer
    x = 1,073,621.70

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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.