Home / 774,230.70-1,161,346.05-660,069.30

Finding the Fourth Proportional to 774,230.70, 1,161,346.05 and 660,069.30

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Solution

The fourth proportional to 774,230.70, 1,161,346.05 and 660,069.30 is: 990,103.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    774,230.70 : 1,161,346.05 = 660,069.30 : x
  2. Step 2: Convert to fraction form
    774,230.70/1,161,346.05 = 660,069.30/x
  3. Step 3: Cross multiply
    774,230.70x = 1,161,346.05 × 660,069.30
  4. Step 4: Simplify right side
    774,230.70x = 766,568,874,281.27
  5. Step 5: Solve for x
    x = 766,568,874,281.27/774,230.70
  6. Step 6: Final answer
    x = 990,103.95

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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.