Home / 1,247,400.46-1,870,296.20-489,318.52

Finding the Fourth Proportional to 1,247,400.46, 1,870,296.20 and 489,318.52

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Solution

The fourth proportional to 1,247,400.46, 1,870,296.20 and 489,318.52 is: 733,662.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,247,400.46 : 1,870,296.20 = 489,318.52 : x
  2. Step 2: Convert to fraction form
    1,247,400.46/1,870,296.20 = 489,318.52/x
  3. Step 3: Cross multiply
    1,247,400.46x = 1,870,296.20 × 489,318.52
  4. Step 4: Simplify right side
    1,247,400.46x = 915,170,568,141.25
  5. Step 5: Solve for x
    x = 915,170,568,141.25/1,247,400.46
  6. Step 6: Final answer
    x = 733,662.20

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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.