Home / 766,861.80-1,150,292.70-483,426.60

Finding the Fourth Proportional to 766,861.80, 1,150,292.70 and 483,426.60

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Solution

The fourth proportional to 766,861.80, 1,150,292.70 and 483,426.60 is: 725,139.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,861.80 : 1,150,292.70 = 483,426.60 : x
  2. Step 2: Convert to fraction form
    766,861.80/1,150,292.70 = 483,426.60/x
  3. Step 3: Cross multiply
    766,861.80x = 1,150,292.70 × 483,426.60
  4. Step 4: Simplify right side
    766,861.80x = 556,082,088,965.82
  5. Step 5: Solve for x
    x = 556,082,088,965.82/766,861.80
  6. Step 6: Final answer
    x = 725,139.90

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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.