Home / 487,999.30-731,977.38-133,013.29

Finding the Fourth Proportional to 487,999.30, 731,977.38 and 133,013.29

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Solution

The fourth proportional to 487,999.30, 731,977.38 and 133,013.29 is: 199,514.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,999.30 : 731,977.38 = 133,013.29 : x
  2. Step 2: Convert to fraction form
    487,999.30/731,977.38 = 133,013.29/x
  3. Step 3: Cross multiply
    487,999.30x = 731,977.38 × 133,013.29
  4. Step 4: Simplify right side
    487,999.30x = 97,362,719,519.38
  5. Step 5: Solve for x
    x = 97,362,719,519.38/487,999.30
  6. Step 6: Final answer
    x = 199,514.06

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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.