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Finding the Fourth Proportional to 518,781.46, 716,251.58 and 325,454.22

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Solution

The fourth proportional to 518,781.46, 716,251.58 and 325,454.22 is: 449,335.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,781.46 : 716,251.58 = 325,454.22 : x
  2. Step 2: Convert to fraction form
    518,781.46/716,251.58 = 325,454.22/x
  3. Step 3: Cross multiply
    518,781.46x = 716,251.58 × 325,454.22
  4. Step 4: Simplify right side
    518,781.46x = 233,107,099,292.67
  5. Step 5: Solve for x
    x = 233,107,099,292.67/518,781.46
  6. Step 6: Final answer
    x = 449,335.83

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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.