Home / 678,659.04-1,016,437.68-323,922.06

Finding the Fourth Proportional to 678,659.04, 1,016,437.68 and 323,922.06

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Solution

The fourth proportional to 678,659.04, 1,016,437.68 and 323,922.06 is: 485,142.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,659.04 : 1,016,437.68 = 323,922.06 : x
  2. Step 2: Convert to fraction form
    678,659.04/1,016,437.68 = 323,922.06/x
  3. Step 3: Cross multiply
    678,659.04x = 1,016,437.68 × 323,922.06
  4. Step 4: Simplify right side
    678,659.04x = 329,246,587,167.22
  5. Step 5: Solve for x
    x = 329,246,587,167.22/678,659.04
  6. Step 6: Final answer
    x = 485,142.86

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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.