Home / 870,266.12-1,200,987.92-488,321.15

Finding the Fourth Proportional to 870,266.12, 1,200,987.92 and 488,321.15

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Solution

The fourth proportional to 870,266.12, 1,200,987.92 and 488,321.15 is: 673,894.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,266.12 : 1,200,987.92 = 488,321.15 : x
  2. Step 2: Convert to fraction form
    870,266.12/1,200,987.92 = 488,321.15/x
  3. Step 3: Cross multiply
    870,266.12x = 1,200,987.92 × 488,321.15
  4. Step 4: Simplify right side
    870,266.12x = 586,467,797,446.37
  5. Step 5: Solve for x
    x = 586,467,797,446.37/870,266.12
  6. Step 6: Final answer
    x = 673,894.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.