Home / 578,188.90-868,135.92-322,521.02

Finding the Fourth Proportional to 578,188.90, 868,135.92 and 322,521.02

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Solution

The fourth proportional to 578,188.90, 868,135.92 and 322,521.02 is: 484,257.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,188.90 : 868,135.92 = 322,521.02 : x
  2. Step 2: Convert to fraction form
    578,188.90/868,135.92 = 322,521.02/x
  3. Step 3: Cross multiply
    578,188.90x = 868,135.92 × 322,521.02
  4. Step 4: Simplify right side
    578,188.90x = 279,992,079,285.81
  5. Step 5: Solve for x
    x = 279,992,079,285.81/578,188.90
  6. Step 6: Final answer
    x = 484,257.10

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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.