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Finding the Fourth Proportional to 478,443.11, 717,669.79 and 204,852.44

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Solution

The fourth proportional to 478,443.11, 717,669.79 and 204,852.44 is: 307,280.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,443.11 : 717,669.79 = 204,852.44 : x
  2. Step 2: Convert to fraction form
    478,443.11/717,669.79 = 204,852.44/x
  3. Step 3: Cross multiply
    478,443.11x = 717,669.79 × 204,852.44
  4. Step 4: Simplify right side
    478,443.11x = 147,016,408,877.83
  5. Step 5: Solve for x
    x = 147,016,408,877.83/478,443.11
  6. Step 6: Final answer
    x = 307,280.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.