Home / 678,107.04-1,017,491.04-278,867.76

Finding the Fourth Proportional to 678,107.04, 1,017,491.04 and 278,867.76

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Solution

The fourth proportional to 678,107.04, 1,017,491.04 and 278,867.76 is: 418,437.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,107.04 : 1,017,491.04 = 278,867.76 : x
  2. Step 2: Convert to fraction form
    678,107.04/1,017,491.04 = 278,867.76/x
  3. Step 3: Cross multiply
    678,107.04x = 1,017,491.04 × 278,867.76
  4. Step 4: Simplify right side
    678,107.04x = 283,745,447,144.87
  5. Step 5: Solve for x
    x = 283,745,447,144.87/678,107.04
  6. Step 6: Final answer
    x = 418,437.55

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Double scale
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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.