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Finding the Fourth Proportional to 636,656.16, 878,585.95 and 350,198.04

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Solution

The fourth proportional to 636,656.16, 878,585.95 and 350,198.04 is: 483,273.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,656.16 : 878,585.95 = 350,198.04 : x
  2. Step 2: Convert to fraction form
    636,656.16/878,585.95 = 350,198.04/x
  3. Step 3: Cross multiply
    636,656.16x = 878,585.95 × 350,198.04
  4. Step 4: Simplify right side
    636,656.16x = 307,679,072,393.11
  5. Step 5: Solve for x
    x = 307,679,072,393.11/636,656.16
  6. Step 6: Final answer
    x = 483,273.54

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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.