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Finding the Fourth Proportional to 649,454.73, 896,208.90 and 359,048.91

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Solution

The fourth proportional to 649,454.73, 896,208.90 and 359,048.91 is: 495,466.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,454.73 : 896,208.90 = 359,048.91 : x
  2. Step 2: Convert to fraction form
    649,454.73/896,208.90 = 359,048.91/x
  3. Step 3: Cross multiply
    649,454.73x = 896,208.90 × 359,048.91
  4. Step 4: Simplify right side
    649,454.73x = 321,782,828,677.30
  5. Step 5: Solve for x
    x = 321,782,828,677.30/649,454.73
  6. Step 6: Final answer
    x = 495,466.14

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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.