Home / 678,964.38-1,018,667.70-323,932.44

Finding the Fourth Proportional to 678,964.38, 1,018,667.70 and 323,932.44

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Solution

The fourth proportional to 678,964.38, 1,018,667.70 and 323,932.44 is: 486,004.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,964.38 : 1,018,667.70 = 323,932.44 : x
  2. Step 2: Convert to fraction form
    678,964.38/1,018,667.70 = 323,932.44/x
  3. Step 3: Cross multiply
    678,964.38x = 1,018,667.70 × 323,932.44
  4. Step 4: Simplify right side
    678,964.38x = 329,979,513,610.19
  5. Step 5: Solve for x
    x = 329,979,513,610.19/678,964.38
  6. Step 6: Final answer
    x = 486,004.16

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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.