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Finding the Fourth Proportional to 988,843.80, 1,483,265.70 and 240,889.80

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Solution

The fourth proportional to 988,843.80, 1,483,265.70 and 240,889.80 is: 361,334.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    988,843.80 : 1,483,265.70 = 240,889.80 : x
  2. Step 2: Convert to fraction form
    988,843.80/1,483,265.70 = 240,889.80/x
  3. Step 3: Cross multiply
    988,843.80x = 1,483,265.70 × 240,889.80
  4. Step 4: Simplify right side
    988,843.80x = 357,303,577,819.86
  5. Step 5: Solve for x
    x = 357,303,577,819.86/988,843.80
  6. Step 6: Final answer
    x = 361,334.70

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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.