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Finding the Fourth Proportional to 636,620.04, 878,531.06 and 350,133.98

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Solution

The fourth proportional to 636,620.04, 878,531.06 and 350,133.98 is: 483,182.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,620.04 : 878,531.06 = 350,133.98 : x
  2. Step 2: Convert to fraction form
    636,620.04/878,531.06 = 350,133.98/x
  3. Step 3: Cross multiply
    636,620.04x = 878,531.06 × 350,133.98
  4. Step 4: Simplify right side
    636,620.04x = 307,603,573,074.10
  5. Step 5: Solve for x
    x = 307,603,573,074.10/636,620.04
  6. Step 6: Final answer
    x = 483,182.36

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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.