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Finding the Fourth Proportional to 520,446.06, 780,671.52 and 160,612.48

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Solution

The fourth proportional to 520,446.06, 780,671.52 and 160,612.48 is: 240,919.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,446.06 : 780,671.52 = 160,612.48 : x
  2. Step 2: Convert to fraction form
    520,446.06/780,671.52 = 160,612.48/x
  3. Step 3: Cross multiply
    520,446.06x = 780,671.52 × 160,612.48
  4. Step 4: Simplify right side
    520,446.06x = 125,385,588,892.57
  5. Step 5: Solve for x
    x = 125,385,588,892.57/520,446.06
  6. Step 6: Final answer
    x = 240,919.47

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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.