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Finding the Fourth Proportional to 474,381.18, 654,256.31 and 338,371.65

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Solution

The fourth proportional to 474,381.18, 654,256.31 and 338,371.65 is: 466,674.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,381.18 : 654,256.31 = 338,371.65 : x
  2. Step 2: Convert to fraction form
    474,381.18/654,256.31 = 338,371.65/x
  3. Step 3: Cross multiply
    474,381.18x = 654,256.31 × 338,371.65
  4. Step 4: Simplify right side
    474,381.18x = 221,381,785,445.75
  5. Step 5: Solve for x
    x = 221,381,785,445.75/474,381.18
  6. Step 6: Final answer
    x = 466,674.89

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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.