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Finding the Fourth Proportional to 578,019.90, 867,029.85 and 298,083.90

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Solution

The fourth proportional to 578,019.90, 867,029.85 and 298,083.90 is: 447,125.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,019.90 : 867,029.85 = 298,083.90 : x
  2. Step 2: Convert to fraction form
    578,019.90/867,029.85 = 298,083.90/x
  3. Step 3: Cross multiply
    578,019.90x = 867,029.85 × 298,083.90
  4. Step 4: Simplify right side
    578,019.90x = 258,447,639,104.42
  5. Step 5: Solve for x
    x = 258,447,639,104.42/578,019.90
  6. Step 6: Final answer
    x = 447,125.85

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Similar ratio
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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.