Home / 729,077.80-1,093,616.70-445,642.60

Finding the Fourth Proportional to 729,077.80, 1,093,616.70 and 445,642.60

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Solution

The fourth proportional to 729,077.80, 1,093,616.70 and 445,642.60 is: 668,463.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,077.80 : 1,093,616.70 = 445,642.60 : x
  2. Step 2: Convert to fraction form
    729,077.80/1,093,616.70 = 445,642.60/x
  3. Step 3: Cross multiply
    729,077.80x = 1,093,616.70 × 445,642.60
  4. Step 4: Simplify right side
    729,077.80x = 487,362,189,591.42
  5. Step 5: Solve for x
    x = 487,362,189,591.42/729,077.80
  6. Step 6: Final answer
    x = 668,463.90

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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.