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Finding the Fourth Proportional to 577,778.70, 797,351.50 and 316,149.71

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Solution

The fourth proportional to 577,778.70, 797,351.50 and 316,149.71 is: 436,295.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,778.70 : 797,351.50 = 316,149.71 : x
  2. Step 2: Convert to fraction form
    577,778.70/797,351.50 = 316,149.71/x
  3. Step 3: Cross multiply
    577,778.70x = 797,351.50 × 316,149.71
  4. Step 4: Simplify right side
    577,778.70x = 252,082,445,398.63
  5. Step 5: Solve for x
    x = 252,082,445,398.63/577,778.70
  6. Step 6: Final answer
    x = 436,295.85

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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.