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Finding the Fourth Proportional to 457,763.63, 631,721.41 and 253,823.15

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Solution

The fourth proportional to 457,763.63, 631,721.41 and 253,823.15 is: 350,280.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,763.63 : 631,721.41 = 253,823.15 : x
  2. Step 2: Convert to fraction form
    457,763.63/631,721.41 = 253,823.15/x
  3. Step 3: Cross multiply
    457,763.63x = 631,721.41 × 253,823.15
  4. Step 4: Simplify right side
    457,763.63x = 160,345,519,153.39
  5. Step 5: Solve for x
    x = 160,345,519,153.39/457,763.63
  6. Step 6: Final answer
    x = 350,280.17

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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.