Home / 857,843.92-1,286,326.48-453,253.32

Finding the Fourth Proportional to 857,843.92, 1,286,326.48 and 453,253.32

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Solution

The fourth proportional to 857,843.92, 1,286,326.48 and 453,253.32 is: 679,647.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,843.92 : 1,286,326.48 = 453,253.32 : x
  2. Step 2: Convert to fraction form
    857,843.92/1,286,326.48 = 453,253.32/x
  3. Step 3: Cross multiply
    857,843.92x = 1,286,326.48 × 453,253.32
  4. Step 4: Simplify right side
    857,843.92x = 583,031,747,663.91
  5. Step 5: Solve for x
    x = 583,031,747,663.91/857,843.92
  6. Step 6: Final answer
    x = 679,647.82

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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.