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Finding the Fourth Proportional to 457,444.56, 631,273.68 and 278,596.56

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Solution

The fourth proportional to 457,444.56, 631,273.68 and 278,596.56 is: 384,463.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,444.56 : 631,273.68 = 278,596.56 : x
  2. Step 2: Convert to fraction form
    457,444.56/631,273.68 = 278,596.56/x
  3. Step 3: Cross multiply
    457,444.56x = 631,273.68 × 278,596.56
  4. Step 4: Simplify right side
    457,444.56x = 175,870,675,666.54
  5. Step 5: Solve for x
    x = 175,870,675,666.54/457,444.56
  6. Step 6: Final answer
    x = 384,463.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.