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Finding the Fourth Proportional to 631,637.80, 947,490.72 and 252,616.12

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Solution

The fourth proportional to 631,637.80, 947,490.72 and 252,616.12 is: 378,937.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,637.80 : 947,490.72 = 252,616.12 : x
  2. Step 2: Convert to fraction form
    631,637.80/947,490.72 = 252,616.12/x
  3. Step 3: Cross multiply
    631,637.80x = 947,490.72 × 252,616.12
  4. Step 4: Simplify right side
    631,637.80x = 239,351,426,106.37
  5. Step 5: Solve for x
    x = 239,351,426,106.37/631,637.80
  6. Step 6: Final answer
    x = 378,937.78

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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.