Home / 438,980.36-658,470.81-123,437.27

Finding the Fourth Proportional to 438,980.36, 658,470.81 and 123,437.27

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Solution

The fourth proportional to 438,980.36, 658,470.81 and 123,437.27 is: 185,155.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,980.36 : 658,470.81 = 123,437.27 : x
  2. Step 2: Convert to fraction form
    438,980.36/658,470.81 = 123,437.27/x
  3. Step 3: Cross multiply
    438,980.36x = 658,470.81 × 123,437.27
  4. Step 4: Simplify right side
    438,980.36x = 81,279,835,868.73
  5. Step 5: Solve for x
    x = 81,279,835,868.73/438,980.36
  6. Step 6: Final answer
    x = 185,155.98

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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.