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Finding the Fourth Proportional to 557,757.40, 838,385.70 and 547,259.80

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Solution

The fourth proportional to 557,757.40, 838,385.70 and 547,259.80 is: 822,606.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,757.40 : 838,385.70 = 547,259.80 : x
  2. Step 2: Convert to fraction form
    557,757.40/838,385.70 = 547,259.80/x
  3. Step 3: Cross multiply
    557,757.40x = 838,385.70 × 547,259.80
  4. Step 4: Simplify right side
    557,757.40x = 458,814,790,504.86
  5. Step 5: Solve for x
    x = 458,814,790,504.86/557,757.40
  6. Step 6: Final answer
    x = 822,606.37

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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.