Home / 487,403.88-731,118.38-231,176.58

Finding the Fourth Proportional to 487,403.88, 731,118.38 and 231,176.58

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Solution

The fourth proportional to 487,403.88, 731,118.38 and 231,176.58 is: 346,770.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,403.88 : 731,118.38 = 231,176.58 : x
  2. Step 2: Convert to fraction form
    487,403.88/731,118.38 = 231,176.58/x
  3. Step 3: Cross multiply
    487,403.88x = 731,118.38 × 231,176.58
  4. Step 4: Simplify right side
    487,403.88x = 169,017,445,507.66
  5. Step 5: Solve for x
    x = 169,017,445,507.66/487,403.88
  6. Step 6: Final answer
    x = 346,770.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.