Home / 487,742.09-731,003.76-234,975.47

Finding the Fourth Proportional to 487,742.09, 731,003.76 and 234,975.47

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Solution

The fourth proportional to 487,742.09, 731,003.76 and 234,975.47 is: 352,169.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,742.09 : 731,003.76 = 234,975.47 : x
  2. Step 2: Convert to fraction form
    487,742.09/731,003.76 = 234,975.47/x
  3. Step 3: Cross multiply
    487,742.09x = 731,003.76 × 234,975.47
  4. Step 4: Simplify right side
    487,742.09x = 171,767,948,422.75
  5. Step 5: Solve for x
    x = 171,767,948,422.75/487,742.09
  6. Step 6: Final answer
    x = 352,169.63

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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.