Home / 638,392.91-880,983.44-348,006.84

Finding the Fourth Proportional to 638,392.91, 880,983.44 and 348,006.84

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Solution

The fourth proportional to 638,392.91, 880,983.44 and 348,006.84 is: 480,250.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,392.91 : 880,983.44 = 348,006.84 : x
  2. Step 2: Convert to fraction form
    638,392.91/880,983.44 = 348,006.84/x
  3. Step 3: Cross multiply
    638,392.91x = 880,983.44 × 348,006.84
  4. Step 4: Simplify right side
    638,392.91x = 306,588,261,306.70
  5. Step 5: Solve for x
    x = 306,588,261,306.70/638,392.91
  6. Step 6: Final answer
    x = 480,250.11

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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.