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Finding the Fourth Proportional to 649,455.73, 896,210.28 and 359,049.91

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Solution

The fourth proportional to 649,455.73, 896,210.28 and 359,049.91 is: 495,467.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,455.73 : 896,210.28 = 359,049.91 : x
  2. Step 2: Convert to fraction form
    649,455.73/896,210.28 = 359,049.91/x
  3. Step 3: Cross multiply
    649,455.73x = 896,210.28 × 359,049.91
  4. Step 4: Simplify right side
    649,455.73x = 321,784,220,375.08
  5. Step 5: Solve for x
    x = 321,784,220,375.08/649,455.73
  6. Step 6: Final answer
    x = 495,467.52

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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.