Home / 1,228,245.38-1,842,368.07-479,766.50

Finding the Fourth Proportional to 1,228,245.38, 1,842,368.07 and 479,766.50

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Solution

The fourth proportional to 1,228,245.38, 1,842,368.07 and 479,766.50 is: 719,649.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,228,245.38 : 1,842,368.07 = 479,766.50 : x
  2. Step 2: Convert to fraction form
    1,228,245.38/1,842,368.07 = 479,766.50/x
  3. Step 3: Cross multiply
    1,228,245.38x = 1,842,368.07 × 479,766.50
  4. Step 4: Simplify right side
    1,228,245.38x = 883,906,480,655.66
  5. Step 5: Solve for x
    x = 883,906,480,655.66/1,228,245.38
  6. Step 6: Final answer
    x = 719,649.75

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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.