Home / 990,200.70-1,485,301.05-242,246.70

Finding the Fourth Proportional to 990,200.70, 1,485,301.05 and 242,246.70

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Solution

The fourth proportional to 990,200.70, 1,485,301.05 and 242,246.70 is: 363,370.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,200.70 : 1,485,301.05 = 242,246.70 : x
  2. Step 2: Convert to fraction form
    990,200.70/1,485,301.05 = 242,246.70/x
  3. Step 3: Cross multiply
    990,200.70x = 1,485,301.05 × 242,246.70
  4. Step 4: Simplify right side
    990,200.70x = 359,809,277,869.04
  5. Step 5: Solve for x
    x = 359,809,277,869.04/990,200.70
  6. Step 6: Final answer
    x = 363,370.05

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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.