Home / 813,738.40-1,217,151.60-730,103.20

Finding the Fourth Proportional to 813,738.40, 1,217,151.60 and 730,103.20

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Solution

The fourth proportional to 813,738.40, 1,217,151.60 and 730,103.20 is: 1,092,054.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,738.40 : 1,217,151.60 = 730,103.20 : x
  2. Step 2: Convert to fraction form
    813,738.40/1,217,151.60 = 730,103.20/x
  3. Step 3: Cross multiply
    813,738.40x = 1,217,151.60 × 730,103.20
  4. Step 4: Simplify right side
    813,738.40x = 888,646,278,045.12
  5. Step 5: Solve for x
    x = 888,646,278,045.12/813,738.40
  6. Step 6: Final answer
    x = 1,092,054.00

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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.