Home / 516,202.74-712,380-353,201.16

Finding the Fourth Proportional to 516,202.74, 712,380 and 353,201.16

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Solution

The fourth proportional to 516,202.74, 712,380 and 353,201.16 is: 487,431.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,202.74 : 712,380 = 353,201.16 : x
  2. Step 2: Convert to fraction form
    516,202.74/712,380 = 353,201.16/x
  3. Step 3: Cross multiply
    516,202.74x = 712,380 × 353,201.16
  4. Step 4: Simplify right side
    516,202.74x = 251,613,442,360.80
  5. Step 5: Solve for x
    x = 251,613,442,360.80/516,202.74
  6. Step 6: Final answer
    x = 487,431.44

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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.