Home / 724,048.72-1,086,037.80-268,728.59

Finding the Fourth Proportional to 724,048.72, 1,086,037.80 and 268,728.59

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Solution

The fourth proportional to 724,048.72, 1,086,037.80 and 268,728.59 is: 403,079.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,048.72 : 1,086,037.80 = 268,728.59 : x
  2. Step 2: Convert to fraction form
    724,048.72/1,086,037.80 = 268,728.59/x
  3. Step 3: Cross multiply
    724,048.72x = 1,086,037.80 × 268,728.59
  4. Step 4: Simplify right side
    724,048.72x = 291,849,403,034.90
  5. Step 5: Solve for x
    x = 291,849,403,034.90/724,048.72
  6. Step 6: Final answer
    x = 403,079.78

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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.