Home / 765,543.24-1,056,380.94-443,275.20

Finding the Fourth Proportional to 765,543.24, 1,056,380.94 and 443,275.20

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Solution

The fourth proportional to 765,543.24, 1,056,380.94 and 443,275.20 is: 611,679.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,543.24 : 1,056,380.94 = 443,275.20 : x
  2. Step 2: Convert to fraction form
    765,543.24/1,056,380.94 = 443,275.20/x
  3. Step 3: Cross multiply
    765,543.24x = 1,056,380.94 × 443,275.20
  4. Step 4: Simplify right side
    765,543.24x = 468,267,472,454.69
  5. Step 5: Solve for x
    x = 468,267,472,454.69/765,543.24
  6. Step 6: Final answer
    x = 611,679.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.