Home / 438,024.66-657,038.07-122,481.06

Finding the Fourth Proportional to 438,024.66, 657,038.07 and 122,481.06

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Solution

The fourth proportional to 438,024.66, 657,038.07 and 122,481.06 is: 183,721.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,024.66 : 657,038.07 = 122,481.06 : x
  2. Step 2: Convert to fraction form
    438,024.66/657,038.07 = 122,481.06/x
  3. Step 3: Cross multiply
    438,024.66x = 657,038.07 × 122,481.06
  4. Step 4: Simplify right side
    438,024.66x = 80,474,719,273.95
  5. Step 5: Solve for x
    x = 80,474,719,273.95/438,024.66
  6. Step 6: Final answer
    x = 183,721.89

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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.