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Finding the Fourth Proportional to 636,305.90, 878,094.24 and 349,823.48

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Solution

The fourth proportional to 636,305.90, 878,094.24 and 349,823.48 is: 482,752.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,305.90 : 878,094.24 = 349,823.48 : x
  2. Step 2: Convert to fraction form
    636,305.90/878,094.24 = 349,823.48/x
  3. Step 3: Cross multiply
    636,305.90x = 878,094.24 × 349,823.48
  4. Step 4: Simplify right side
    636,305.90x = 307,177,982,804.76
  5. Step 5: Solve for x
    x = 307,177,982,804.76/636,305.90
  6. Step 6: Final answer
    x = 482,752.06

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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.