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Finding the Fourth Proportional to 636,369.52, 878,171.45 and 360,752.93

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Solution

The fourth proportional to 636,369.52, 878,171.45 and 360,752.93 is: 497,828.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,369.52 : 878,171.45 = 360,752.93 : x
  2. Step 2: Convert to fraction form
    636,369.52/878,171.45 = 360,752.93/x
  3. Step 3: Cross multiply
    636,369.52x = 878,171.45 × 360,752.93
  4. Step 4: Simplify right side
    636,369.52x = 316,802,923,629.85
  5. Step 5: Solve for x
    x = 316,802,923,629.85/636,369.52
  6. Step 6: Final answer
    x = 497,828.56

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1.5x scale

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.