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Finding the Fourth Proportional to 969,570, 1,337,979.60 and 539,849.88

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Solution

The fourth proportional to 969,570, 1,337,979.60 and 539,849.88 is: 744,977.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    969,570 : 1,337,979.60 = 539,849.88 : x
  2. Step 2: Convert to fraction form
    969,570/1,337,979.60 = 539,849.88/x
  3. Step 3: Cross multiply
    969,570x = 1,337,979.60 × 539,849.88
  4. Step 4: Simplify right side
    969,570x = 722,308,126,502.45
  5. Step 5: Solve for x
    x = 722,308,126,502.45/969,570
  6. Step 6: Final answer
    x = 744,977.80

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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.