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Finding the Fourth Proportional to 522,353.28, 721,011.60 and 296,149.44

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Solution

The fourth proportional to 522,353.28, 721,011.60 and 296,149.44 is: 408,779.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,353.28 : 721,011.60 = 296,149.44 : x
  2. Step 2: Convert to fraction form
    522,353.28/721,011.60 = 296,149.44/x
  3. Step 3: Cross multiply
    522,353.28x = 721,011.60 × 296,149.44
  4. Step 4: Simplify right side
    522,353.28x = 213,527,181,573.50
  5. Step 5: Solve for x
    x = 213,527,181,573.50/522,353.28
  6. Step 6: Final answer
    x = 408,779.25

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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.