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Finding the Fourth Proportional to 649,612.45, 896,485.04 and 363,144.61

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Solution

The fourth proportional to 649,612.45, 896,485.04 and 363,144.61 is: 501,150.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,612.45 : 896,485.04 = 363,144.61 : x
  2. Step 2: Convert to fraction form
    649,612.45/896,485.04 = 363,144.61/x
  3. Step 3: Cross multiply
    649,612.45x = 896,485.04 × 363,144.61
  4. Step 4: Simplify right side
    649,612.45x = 325,553,710,221.63
  5. Step 5: Solve for x
    x = 325,553,710,221.63/649,612.45
  6. Step 6: Final answer
    x = 501,150.66

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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.