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Finding the Fourth Proportional to 518,204.68, 715,173.46 and 303,331.72

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Solution

The fourth proportional to 518,204.68, 715,173.46 and 303,331.72 is: 418,627.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,204.68 : 715,173.46 = 303,331.72 : x
  2. Step 2: Convert to fraction form
    518,204.68/715,173.46 = 303,331.72/x
  3. Step 3: Cross multiply
    518,204.68x = 715,173.46 × 303,331.72
  4. Step 4: Simplify right side
    518,204.68x = 216,934,795,720.15
  5. Step 5: Solve for x
    x = 216,934,795,720.15/518,204.68
  6. Step 6: Final answer
    x = 418,627.63

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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.