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Finding the Fourth Proportional to 609,081.76, 840,458.49 and 351,042.17

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Solution

The fourth proportional to 609,081.76, 840,458.49 and 351,042.17 is: 484,395.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,081.76 : 840,458.49 = 351,042.17 : x
  2. Step 2: Convert to fraction form
    609,081.76/840,458.49 = 351,042.17/x
  3. Step 3: Cross multiply
    609,081.76x = 840,458.49 × 351,042.17
  4. Step 4: Simplify right side
    609,081.76x = 295,036,372,124.52
  5. Step 5: Solve for x
    x = 295,036,372,124.52/609,081.76
  6. Step 6: Final answer
    x = 484,395.35

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1.5x scale

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.