Home / 487,991.39-731,904.03-132,922.35

Finding the Fourth Proportional to 487,991.39, 731,904.03 and 132,922.35

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Solution

The fourth proportional to 487,991.39, 731,904.03 and 132,922.35 is: 199,360.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,991.39 : 731,904.03 = 132,922.35 : x
  2. Step 2: Convert to fraction form
    487,991.39/731,904.03 = 132,922.35/x
  3. Step 3: Cross multiply
    487,991.39x = 731,904.03 × 132,922.35
  4. Step 4: Simplify right side
    487,991.39x = 97,286,403,642.07
  5. Step 5: Solve for x
    x = 97,286,403,642.07/487,991.39
  6. Step 6: Final answer
    x = 199,360.90

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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.