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Finding the Fourth Proportional to 501,648.16, 752,495.28 and 127,674.40

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Solution

The fourth proportional to 501,648.16, 752,495.28 and 127,674.40 is: 191,517.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,648.16 : 752,495.28 = 127,674.40 : x
  2. Step 2: Convert to fraction form
    501,648.16/752,495.28 = 127,674.40/x
  3. Step 3: Cross multiply
    501,648.16x = 752,495.28 × 127,674.40
  4. Step 4: Simplify right side
    501,648.16x = 96,074,383,376.83
  5. Step 5: Solve for x
    x = 96,074,383,376.83/501,648.16
  6. Step 6: Final answer
    x = 191,517.46

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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.