Home / 1,090,223.80-1,635,335.70-491,860.60

Finding the Fourth Proportional to 1,090,223.80, 1,635,335.70 and 491,860.60

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Solution

The fourth proportional to 1,090,223.80, 1,635,335.70 and 491,860.60 is: 737,790.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,090,223.80 : 1,635,335.70 = 491,860.60 : x
  2. Step 2: Convert to fraction form
    1,090,223.80/1,635,335.70 = 491,860.60/x
  3. Step 3: Cross multiply
    1,090,223.80x = 1,635,335.70 × 491,860.60
  4. Step 4: Simplify right side
    1,090,223.80x = 804,357,198,603.42
  5. Step 5: Solve for x
    x = 804,357,198,603.42/1,090,223.80
  6. Step 6: Final answer
    x = 737,790.90

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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.