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Finding the Fourth Proportional to 518,052.74, 715,019.13 and 326,937.86

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Solution

The fourth proportional to 518,052.74, 715,019.13 and 326,937.86 is: 451,241.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,052.74 : 715,019.13 = 326,937.86 : x
  2. Step 2: Convert to fraction form
    518,052.74/715,019.13 = 326,937.86/x
  3. Step 3: Cross multiply
    518,052.74x = 715,019.13 × 326,937.86
  4. Step 4: Simplify right side
    518,052.74x = 233,766,824,221.26
  5. Step 5: Solve for x
    x = 233,766,824,221.26/518,052.74
  6. Step 6: Final answer
    x = 451,241.36

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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.