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Finding the Fourth Proportional to 636,364.52, 878,164.55 and 360,747.93

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Solution

The fourth proportional to 636,364.52, 878,164.55 and 360,747.93 is: 497,821.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,364.52 : 878,164.55 = 360,747.93 : x
  2. Step 2: Convert to fraction form
    636,364.52/878,164.55 = 360,747.93/x
  3. Step 3: Cross multiply
    636,364.52x = 878,164.55 × 360,747.93
  4. Step 4: Simplify right side
    636,364.52x = 316,796,043,611.88
  5. Step 5: Solve for x
    x = 316,796,043,611.88/636,364.52
  6. Step 6: Final answer
    x = 497,821.66

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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.