Home / 516,335.30-712,343.73-380,691.18

Finding the Fourth Proportional to 516,335.30, 712,343.73 and 380,691.18

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Solution

The fourth proportional to 516,335.30, 712,343.73 and 380,691.18 is: 525,207.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,335.30 : 712,343.73 = 380,691.18 : x
  2. Step 2: Convert to fraction form
    516,335.30/712,343.73 = 380,691.18/x
  3. Step 3: Cross multiply
    516,335.30x = 712,343.73 × 380,691.18
  4. Step 4: Simplify right side
    516,335.30x = 271,182,975,139.30
  5. Step 5: Solve for x
    x = 271,182,975,139.30/516,335.30
  6. Step 6: Final answer
    x = 525,207.12

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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.