Home / 1,109,080.40-1,663,620.60-547,998.80

Finding the Fourth Proportional to 1,109,080.40, 1,663,620.60 and 547,998.80

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Solution

The fourth proportional to 1,109,080.40, 1,663,620.60 and 547,998.80 is: 821,998.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,109,080.40 : 1,663,620.60 = 547,998.80 : x
  2. Step 2: Convert to fraction form
    1,109,080.40/1,663,620.60 = 547,998.80/x
  3. Step 3: Cross multiply
    1,109,080.40x = 1,663,620.60 × 547,998.80
  4. Step 4: Simplify right side
    1,109,080.40x = 911,662,092,455.28
  5. Step 5: Solve for x
    x = 911,662,092,455.28/1,109,080.40
  6. Step 6: Final answer
    x = 821,998.20

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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.