Home / 487,959.06-731,967.30-188,441.22

Finding the Fourth Proportional to 487,959.06, 731,967.30 and 188,441.22

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Solution

The fourth proportional to 487,959.06, 731,967.30 and 188,441.22 is: 282,672.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,959.06 : 731,967.30 = 188,441.22 : x
  2. Step 2: Convert to fraction form
    487,959.06/731,967.30 = 188,441.22/x
  3. Step 3: Cross multiply
    487,959.06x = 731,967.30 × 188,441.22
  4. Step 4: Simplify right side
    487,959.06x = 137,932,811,012.11
  5. Step 5: Solve for x
    x = 137,932,811,012.11/487,959.06
  6. Step 6: Final answer
    x = 282,672.92

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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.