Home / 990,535.70-1,485,803.55-242,581.70

Finding the Fourth Proportional to 990,535.70, 1,485,803.55 and 242,581.70

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Solution

The fourth proportional to 990,535.70, 1,485,803.55 and 242,581.70 is: 363,872.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,535.70 : 1,485,803.55 = 242,581.70 : x
  2. Step 2: Convert to fraction form
    990,535.70/1,485,803.55 = 242,581.70/x
  3. Step 3: Cross multiply
    990,535.70x = 1,485,803.55 × 242,581.70
  4. Step 4: Simplify right side
    990,535.70x = 360,428,751,025.04
  5. Step 5: Solve for x
    x = 360,428,751,025.04/990,535.70
  6. Step 6: Final answer
    x = 363,872.55

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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.