Home / 760,439.20-1,140,658.80-755,190.40

Finding the Fourth Proportional to 760,439.20, 1,140,658.80 and 755,190.40

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Solution

The fourth proportional to 760,439.20, 1,140,658.80 and 755,190.40 is: 1,132,785.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,439.20 : 1,140,658.80 = 755,190.40 : x
  2. Step 2: Convert to fraction form
    760,439.20/1,140,658.80 = 755,190.40/x
  3. Step 3: Cross multiply
    760,439.20x = 1,140,658.80 × 755,190.40
  4. Step 4: Simplify right side
    760,439.20x = 861,414,575,435.52
  5. Step 5: Solve for x
    x = 861,414,575,435.52/760,439.20
  6. Step 6: Final answer
    x = 1,132,785.60

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Similar ratio
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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.