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Finding the Fourth Proportional to 614,449.76, 847,989.96 and 342,606.20

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Solution

The fourth proportional to 614,449.76, 847,989.96 and 342,606.20 is: 472,824.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,449.76 : 847,989.96 = 342,606.20 : x
  2. Step 2: Convert to fraction form
    614,449.76/847,989.96 = 342,606.20/x
  3. Step 3: Cross multiply
    614,449.76x = 847,989.96 × 342,606.20
  4. Step 4: Simplify right side
    614,449.76x = 290,526,617,833.75
  5. Step 5: Solve for x
    x = 290,526,617,833.75/614,449.76
  6. Step 6: Final answer
    x = 472,824.04

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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.