Home / 678,882.92-1,017,934.14-279,799.16

Finding the Fourth Proportional to 678,882.92, 1,017,934.14 and 279,799.16

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Solution

The fourth proportional to 678,882.92, 1,017,934.14 and 279,799.16 is: 419,537.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,882.92 : 1,017,934.14 = 279,799.16 : x
  2. Step 2: Convert to fraction form
    678,882.92/1,017,934.14 = 279,799.16/x
  3. Step 3: Cross multiply
    678,882.92x = 1,017,934.14 × 279,799.16
  4. Step 4: Simplify right side
    678,882.92x = 284,817,117,307.32
  5. Step 5: Solve for x
    x = 284,817,117,307.32/678,882.92
  6. Step 6: Final answer
    x = 419,537.90

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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.