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Finding the Fourth Proportional to 636,761.64, 878,696.46 and 350,235.48

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Solution

The fourth proportional to 636,761.64, 878,696.46 and 350,235.48 is: 483,305.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,761.64 : 878,696.46 = 350,235.48 : x
  2. Step 2: Convert to fraction form
    636,761.64/878,696.46 = 350,235.48/x
  3. Step 3: Cross multiply
    636,761.64x = 878,696.46 × 350,235.48
  4. Step 4: Simplify right side
    636,761.64x = 307,750,676,442.40
  5. Step 5: Solve for x
    x = 307,750,676,442.40/636,761.64
  6. Step 6: Final answer
    x = 483,305.93

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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.