Home / 578,778.10-867,875.55-342,193.30

Finding the Fourth Proportional to 578,778.10, 867,875.55 and 342,193.30

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Solution

The fourth proportional to 578,778.10, 867,875.55 and 342,193.30 is: 513,117.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,778.10 : 867,875.55 = 342,193.30 : x
  2. Step 2: Convert to fraction form
    578,778.10/867,875.55 = 342,193.30/x
  3. Step 3: Cross multiply
    578,778.10x = 867,875.55 × 342,193.30
  4. Step 4: Simplify right side
    578,778.10x = 296,981,198,443.82
  5. Step 5: Solve for x
    x = 296,981,198,443.82/578,778.10
  6. Step 6: Final answer
    x = 513,117.55

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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.