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Finding the Fourth Proportional to 636,229.52, 877,979.40 and 349,749.68

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Solution

The fourth proportional to 636,229.52, 877,979.40 and 349,749.68 is: 482,645.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,229.52 : 877,979.40 = 349,749.68 : x
  2. Step 2: Convert to fraction form
    636,229.52/877,979.40 = 349,749.68/x
  3. Step 3: Cross multiply
    636,229.52x = 877,979.40 × 349,749.68
  4. Step 4: Simplify right side
    636,229.52x = 307,073,014,196.59
  5. Step 5: Solve for x
    x = 307,073,014,196.59/636,229.52
  6. Step 6: Final answer
    x = 482,645.03

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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.