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Finding the Fourth Proportional to 636,463.17, 878,341.73 and 350,005.05

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Solution

The fourth proportional to 636,463.17, 878,341.73 and 350,005.05 is: 483,019.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,463.17 : 878,341.73 = 350,005.05 : x
  2. Step 2: Convert to fraction form
    636,463.17/878,341.73 = 350,005.05/x
  3. Step 3: Cross multiply
    636,463.17x = 878,341.73 × 350,005.05
  4. Step 4: Simplify right side
    636,463.17x = 307,424,039,375.71
  5. Step 5: Solve for x
    x = 307,424,039,375.71/636,463.17
  6. Step 6: Final answer
    x = 483,019.37

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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.