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Finding the Fourth Proportional to 501,795.60, 752,697.72 and 127,818.24

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Solution

The fourth proportional to 501,795.60, 752,697.72 and 127,818.24 is: 191,728.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,795.60 : 752,697.72 = 127,818.24 : x
  2. Step 2: Convert to fraction form
    501,795.60/752,697.72 = 127,818.24/x
  3. Step 3: Cross multiply
    501,795.60x = 752,697.72 × 127,818.24
  4. Step 4: Simplify right side
    501,795.60x = 96,208,497,822.41
  5. Step 5: Solve for x
    x = 96,208,497,822.41/501,795.60
  6. Step 6: Final answer
    x = 191,728.46

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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.