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Finding the Fourth Proportional to 545,726.59, 747,649.04 and 525,272.54

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Solution

The fourth proportional to 545,726.59, 747,649.04 and 525,272.54 is: 719,626.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,726.59 : 747,649.04 = 525,272.54 : x
  2. Step 2: Convert to fraction form
    545,726.59/747,649.04 = 525,272.54/x
  3. Step 3: Cross multiply
    545,726.59x = 747,649.04 × 525,272.54
  4. Step 4: Simplify right side
    545,726.59x = 392,719,503,904.75
  5. Step 5: Solve for x
    x = 392,719,503,904.75/545,726.59
  6. Step 6: Final answer
    x = 719,626.85

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.