Home / 858,789.12-1,185,182.64-496,279.56

Finding the Fourth Proportional to 858,789.12, 1,185,182.64 and 496,279.56

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Solution

The fourth proportional to 858,789.12, 1,185,182.64 and 496,279.56 is: 684,896.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,789.12 : 1,185,182.64 = 496,279.56 : x
  2. Step 2: Convert to fraction form
    858,789.12/1,185,182.64 = 496,279.56/x
  3. Step 3: Cross multiply
    858,789.12x = 1,185,182.64 × 496,279.56
  4. Step 4: Simplify right side
    858,789.12x = 588,181,919,098.84
  5. Step 5: Solve for x
    x = 588,181,919,098.84/858,789.12
  6. Step 6: Final answer
    x = 684,896.80

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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.