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Finding the Fourth Proportional to 557,757.90, 835,652.70 and 457,374.60

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Solution

The fourth proportional to 557,757.90, 835,652.70 and 457,374.60 is: 685,254.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,757.90 : 835,652.70 = 457,374.60 : x
  2. Step 2: Convert to fraction form
    557,757.90/835,652.70 = 457,374.60/x
  3. Step 3: Cross multiply
    557,757.90x = 835,652.70 × 457,374.60
  4. Step 4: Simplify right side
    557,757.90x = 382,206,319,401.42
  5. Step 5: Solve for x
    x = 382,206,319,401.42/557,757.90
  6. Step 6: Final answer
    x = 685,254.87

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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.