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Finding the Fourth Proportional to 528,711.79, 791,701.85 and 364,899.66

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Solution

The fourth proportional to 528,711.79, 791,701.85 and 364,899.66 is: 546,406.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,711.79 : 791,701.85 = 364,899.66 : x
  2. Step 2: Convert to fraction form
    528,711.79/791,701.85 = 364,899.66/x
  3. Step 3: Cross multiply
    528,711.79x = 791,701.85 × 364,899.66
  4. Step 4: Simplify right side
    528,711.79x = 288,891,740,487.96
  5. Step 5: Solve for x
    x = 288,891,740,487.96/528,711.79
  6. Step 6: Final answer
    x = 546,406.85

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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.