Home / 457,520.13-631,377.72-256,316.13

Finding the Fourth Proportional to 457,520.13, 631,377.72 and 256,316.13

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Solution

The fourth proportional to 457,520.13, 631,377.72 and 256,316.13 is: 353,716.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,520.13 : 631,377.72 = 256,316.13 : x
  2. Step 2: Convert to fraction form
    457,520.13/631,377.72 = 256,316.13/x
  3. Step 3: Cross multiply
    457,520.13x = 631,377.72 × 256,316.13
  4. Step 4: Simplify right side
    457,520.13x = 161,832,293,758.62
  5. Step 5: Solve for x
    x = 161,832,293,758.62/457,520.13
  6. Step 6: Final answer
    x = 353,716.23

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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.