Home / 857,094.72-1,285,882.80-317,342.88

Finding the Fourth Proportional to 857,094.72, 1,285,882.80 and 317,342.88

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Solution

The fourth proportional to 857,094.72, 1,285,882.80 and 317,342.88 is: 476,103.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,094.72 : 1,285,882.80 = 317,342.88 : x
  2. Step 2: Convert to fraction form
    857,094.72/1,285,882.80 = 317,342.88/x
  3. Step 3: Cross multiply
    857,094.72x = 1,285,882.80 × 317,342.88
  4. Step 4: Simplify right side
    857,094.72x = 408,065,751,094.46
  5. Step 5: Solve for x
    x = 408,065,751,094.46/857,094.72
  6. Step 6: Final answer
    x = 476,103.45

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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.