Home / 469,921.38-648,474.13-255,056.87

Finding the Fourth Proportional to 469,921.38, 648,474.13 and 255,056.87

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Solution

The fourth proportional to 469,921.38, 648,474.13 and 255,056.87 is: 351,969.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,921.38 : 648,474.13 = 255,056.87 : x
  2. Step 2: Convert to fraction form
    469,921.38/648,474.13 = 255,056.87/x
  3. Step 3: Cross multiply
    469,921.38x = 648,474.13 × 255,056.87
  4. Step 4: Simplify right side
    469,921.38x = 165,397,781,873.77
  5. Step 5: Solve for x
    x = 165,397,781,873.77/469,921.38
  6. Step 6: Final answer
    x = 351,969.05

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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.