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Finding the Fourth Proportional to 609,785.84, 913,680.90 and 369,170.48

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Solution

The fourth proportional to 609,785.84, 913,680.90 and 369,170.48 is: 553,151.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,785.84 : 913,680.90 = 369,170.48 : x
  2. Step 2: Convert to fraction form
    609,785.84/913,680.90 = 369,170.48/x
  3. Step 3: Cross multiply
    609,785.84x = 913,680.90 × 369,170.48
  4. Step 4: Simplify right side
    609,785.84x = 337,304,011,851.43
  5. Step 5: Solve for x
    x = 337,304,011,851.43/609,785.84
  6. Step 6: Final answer
    x = 553,151.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.