Home / 726,747.40-1,090,121.10-446,811.40

Finding the Fourth Proportional to 726,747.40, 1,090,121.10 and 446,811.40

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Solution

The fourth proportional to 726,747.40, 1,090,121.10 and 446,811.40 is: 670,217.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,747.40 : 1,090,121.10 = 446,811.40 : x
  2. Step 2: Convert to fraction form
    726,747.40/1,090,121.10 = 446,811.40/x
  3. Step 3: Cross multiply
    726,747.40x = 1,090,121.10 × 446,811.40
  4. Step 4: Simplify right side
    726,747.40x = 487,078,534,860.54
  5. Step 5: Solve for x
    x = 487,078,534,860.54/726,747.40
  6. Step 6: Final answer
    x = 670,217.10

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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.