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Finding the Fourth Proportional to 518,960.12, 716,234.28 and 304,185.92

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Solution

The fourth proportional to 518,960.12, 716,234.28 and 304,185.92 is: 419,817.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,960.12 : 716,234.28 = 304,185.92 : x
  2. Step 2: Convert to fraction form
    518,960.12/716,234.28 = 304,185.92/x
  3. Step 3: Cross multiply
    518,960.12x = 716,234.28 × 304,185.92
  4. Step 4: Simplify right side
    518,960.12x = 217,868,383,397.34
  5. Step 5: Solve for x
    x = 217,868,383,397.34/518,960.12
  6. Step 6: Final answer
    x = 419,817.20

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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.