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Finding the Fourth Proportional to 674,359.20, 930,680 and 368,482

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Solution

The fourth proportional to 674,359.20, 930,680 and 368,482 is: 508,540.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,359.20 : 930,680 = 368,482 : x
  2. Step 2: Convert to fraction form
    674,359.20/930,680 = 368,482/x
  3. Step 3: Cross multiply
    674,359.20x = 930,680 × 368,482
  4. Step 4: Simplify right side
    674,359.20x = 342,938,827,760
  5. Step 5: Solve for x
    x = 342,938,827,760/674,359.20
  6. Step 6: Final answer
    x = 508,540.30

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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.