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Finding the Fourth Proportional to 636,490.26, 878,363.01 and 350,012.46

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Solution

The fourth proportional to 636,490.26, 878,363.01 and 350,012.46 is: 483,020.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,490.26 : 878,363.01 = 350,012.46 : x
  2. Step 2: Convert to fraction form
    636,490.26/878,363.01 = 350,012.46/x
  3. Step 3: Cross multiply
    636,490.26x = 878,363.01 × 350,012.46
  4. Step 4: Simplify right side
    636,490.26x = 307,437,997,903.11
  5. Step 5: Solve for x
    x = 307,437,997,903.11/636,490.26
  6. Step 6: Final answer
    x = 483,020.74

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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.