Home / 678,529.26-1,016,243.70-323,792.40

Finding the Fourth Proportional to 678,529.26, 1,016,243.70 and 323,792.40

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Solution

The fourth proportional to 678,529.26, 1,016,243.70 and 323,792.40 is: 484,948.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,529.26 : 1,016,243.70 = 323,792.40 : x
  2. Step 2: Convert to fraction form
    678,529.26/1,016,243.70 = 323,792.40/x
  3. Step 3: Cross multiply
    678,529.26x = 1,016,243.70 × 323,792.40
  4. Step 4: Simplify right side
    678,529.26x = 329,051,986,607.88
  5. Step 5: Solve for x
    x = 329,051,986,607.88/678,529.26
  6. Step 6: Final answer
    x = 484,948.85

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Double scale
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Similar ratio
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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.