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Finding the Fourth Proportional to 400,627.44, 600,902.04 and 105,139.44

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Solution

The fourth proportional to 400,627.44, 600,902.04 and 105,139.44 is: 157,698.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,627.44 : 600,902.04 = 105,139.44 : x
  2. Step 2: Convert to fraction form
    400,627.44/600,902.04 = 105,139.44/x
  3. Step 3: Cross multiply
    400,627.44x = 600,902.04 × 105,139.44
  4. Step 4: Simplify right side
    400,627.44x = 63,178,503,980.46
  5. Step 5: Solve for x
    x = 63,178,503,980.46/400,627.44
  6. Step 6: Final answer
    x = 157,698.89

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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.