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Finding the Fourth Proportional to 725,580.76, 1,000,892.82 and 435,114.96

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Solution

The fourth proportional to 725,580.76, 1,000,892.82 and 435,114.96 is: 600,213.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,580.76 : 1,000,892.82 = 435,114.96 : x
  2. Step 2: Convert to fraction form
    725,580.76/1,000,892.82 = 435,114.96/x
  3. Step 3: Cross multiply
    725,580.76x = 1,000,892.82 × 435,114.96
  4. Step 4: Simplify right side
    725,580.76x = 435,503,439,338.59
  5. Step 5: Solve for x
    x = 435,503,439,338.59/725,580.76
  6. Step 6: Final answer
    x = 600,213.60

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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.