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Finding the Fourth Proportional to 636,100.47, 877,807.37 and 349,620.48

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Solution

The fourth proportional to 636,100.47, 877,807.37 and 349,620.48 is: 482,470.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,100.47 : 877,807.37 = 349,620.48 : x
  2. Step 2: Convert to fraction form
    636,100.47/877,807.37 = 349,620.48/x
  3. Step 3: Cross multiply
    636,100.47x = 877,807.37 × 349,620.48
  4. Step 4: Simplify right side
    636,100.47x = 306,899,432,298.84
  5. Step 5: Solve for x
    x = 306,899,432,298.84/636,100.47
  6. Step 6: Final answer
    x = 482,470.06

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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.