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Finding the Fourth Proportional to 636,553.82, 878,426.73 and 350,073.90

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Solution

The fourth proportional to 636,553.82, 878,426.73 and 350,073.90 is: 483,092.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,553.82 : 878,426.73 = 350,073.90 : x
  2. Step 2: Convert to fraction form
    636,553.82/878,426.73 = 350,073.90/x
  3. Step 3: Cross multiply
    636,553.82x = 878,426.73 × 350,073.90
  4. Step 4: Simplify right side
    636,553.82x = 307,514,271,235.35
  5. Step 5: Solve for x
    x = 307,514,271,235.35/636,553.82
  6. Step 6: Final answer
    x = 483,092.33

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1.5x scale

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.