Home / 857,825.40-1,286,298.72-453,234.81

Finding the Fourth Proportional to 857,825.40, 1,286,298.72 and 453,234.81

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Solution

The fourth proportional to 857,825.40, 1,286,298.72 and 453,234.81 is: 679,620.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,825.40 : 1,286,298.72 = 453,234.81 : x
  2. Step 2: Convert to fraction form
    857,825.40/1,286,298.72 = 453,234.81/x
  3. Step 3: Cross multiply
    857,825.40x = 1,286,298.72 × 453,234.81
  4. Step 4: Simplify right side
    857,825.40x = 582,995,355,962.44
  5. Step 5: Solve for x
    x = 582,995,355,962.44/857,825.40
  6. Step 6: Final answer
    x = 679,620.07

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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.