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Finding the Fourth Proportional to 649,689.98, 896,577.83 and 359,286.44

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Solution

The fourth proportional to 649,689.98, 896,577.83 and 359,286.44 is: 495,818.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,689.98 : 896,577.83 = 359,286.44 : x
  2. Step 2: Convert to fraction form
    649,689.98/896,577.83 = 359,286.44/x
  3. Step 3: Cross multiply
    649,689.98x = 896,577.83 × 359,286.44
  4. Step 4: Simplify right side
    649,689.98x = 322,128,250,444.30
  5. Step 5: Solve for x
    x = 322,128,250,444.30/649,689.98
  6. Step 6: Final answer
    x = 495,818.41

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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.