Home / 870,313.46-1,305,449.53-512,751.92

Finding the Fourth Proportional to 870,313.46, 1,305,449.53 and 512,751.92

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Solution

The fourth proportional to 870,313.46, 1,305,449.53 and 512,751.92 is: 769,115.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,313.46 : 1,305,449.53 = 512,751.92 : x
  2. Step 2: Convert to fraction form
    870,313.46/1,305,449.53 = 512,751.92/x
  3. Step 3: Cross multiply
    870,313.46x = 1,305,449.53 × 512,751.92
  4. Step 4: Simplify right side
    870,313.46x = 669,371,752,970.60
  5. Step 5: Solve for x
    x = 669,371,752,970.60/870,313.46
  6. Step 6: Final answer
    x = 769,115.71

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1.5x scale

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.