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Finding the Fourth Proportional to 636,533.07, 878,398.10 and 350,053.16

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Solution

The fourth proportional to 636,533.07, 878,398.10 and 350,053.16 is: 483,063.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,533.07 : 878,398.10 = 350,053.16 : x
  2. Step 2: Convert to fraction form
    636,533.07/878,398.10 = 350,053.16/x
  3. Step 3: Cross multiply
    636,533.07x = 878,398.10 × 350,053.16
  4. Step 4: Simplify right side
    636,533.07x = 307,486,024,500.74
  5. Step 5: Solve for x
    x = 307,486,024,500.74/636,533.07
  6. Step 6: Final answer
    x = 483,063.71

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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.