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Finding the Fourth Proportional to 517,720.24, 714,674.38 and 348,052.78

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Solution

The fourth proportional to 517,720.24, 714,674.38 and 348,052.78 is: 480,461.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,720.24 : 714,674.38 = 348,052.78 : x
  2. Step 2: Convert to fraction form
    517,720.24/714,674.38 = 348,052.78/x
  3. Step 3: Cross multiply
    517,720.24x = 714,674.38 × 348,052.78
  4. Step 4: Simplify right side
    517,720.24x = 248,744,404,753.78
  5. Step 5: Solve for x
    x = 248,744,404,753.78/517,720.24
  6. Step 6: Final answer
    x = 480,461.04

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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.