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Finding the Fourth Proportional to 520,167.60, 780,095.88 and 270,713.52

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Solution

The fourth proportional to 520,167.60, 780,095.88 and 270,713.52 is: 405,989.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,167.60 : 780,095.88 = 270,713.52 : x
  2. Step 2: Convert to fraction form
    520,167.60/780,095.88 = 270,713.52/x
  3. Step 3: Cross multiply
    520,167.60x = 780,095.88 × 270,713.52
  4. Step 4: Simplify right side
    520,167.60x = 211,182,501,612.30
  5. Step 5: Solve for x
    x = 211,182,501,612.30/520,167.60
  6. Step 6: Final answer
    x = 405,989.34

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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.