Home / 858,626.43-1,287,898.08-326,105.90

Finding the Fourth Proportional to 858,626.43, 1,287,898.08 and 326,105.90

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Solution

The fourth proportional to 858,626.43, 1,287,898.08 and 326,105.90 is: 489,143.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,626.43 : 1,287,898.08 = 326,105.90 : x
  2. Step 2: Convert to fraction form
    858,626.43/1,287,898.08 = 326,105.90/x
  3. Step 3: Cross multiply
    858,626.43x = 1,287,898.08 × 326,105.90
  4. Step 4: Simplify right side
    858,626.43x = 419,991,159,653.90
  5. Step 5: Solve for x
    x = 419,991,159,653.90/858,626.43
  6. Step 6: Final answer
    x = 489,143.06

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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.