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Finding the Fourth Proportional to 476,589.42, 658,279.71 and 356,268

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Solution

The fourth proportional to 476,589.42, 658,279.71 and 356,268 is: 492,088.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,589.42 : 658,279.71 = 356,268 : x
  2. Step 2: Convert to fraction form
    476,589.42/658,279.71 = 356,268/x
  3. Step 3: Cross multiply
    476,589.42x = 658,279.71 × 356,268
  4. Step 4: Simplify right side
    476,589.42x = 234,523,995,722.28
  5. Step 5: Solve for x
    x = 234,523,995,722.28/476,589.42
  6. Step 6: Final answer
    x = 492,088.13

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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.