Home / 1,082,821.80-1,624,232.70-830,879.40

Finding the Fourth Proportional to 1,082,821.80, 1,624,232.70 and 830,879.40

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Solution

The fourth proportional to 1,082,821.80, 1,624,232.70 and 830,879.40 is: 1,246,319.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,082,821.80 : 1,624,232.70 = 830,879.40 : x
  2. Step 2: Convert to fraction form
    1,082,821.80/1,624,232.70 = 830,879.40/x
  3. Step 3: Cross multiply
    1,082,821.80x = 1,624,232.70 × 830,879.40
  4. Step 4: Simplify right side
    1,082,821.80x = 1,349,541,491,236.38
  5. Step 5: Solve for x
    x = 1,349,541,491,236.38/1,082,821.80
  6. Step 6: Final answer
    x = 1,246,319.10

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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.