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Finding the Fourth Proportional to 460,359.62, 635,328.20 and 279,079.19

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Solution

The fourth proportional to 460,359.62, 635,328.20 and 279,079.19 is: 385,148.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    460,359.62 : 635,328.20 = 279,079.19 : x
  2. Step 2: Convert to fraction form
    460,359.62/635,328.20 = 279,079.19/x
  3. Step 3: Cross multiply
    460,359.62x = 635,328.20 × 279,079.19
  4. Step 4: Simplify right side
    460,359.62x = 177,306,874,868.12
  5. Step 5: Solve for x
    x = 177,306,874,868.12/460,359.62
  6. Step 6: Final answer
    x = 385,148.63

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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.