Home / 787,309.40-1,181,151.57-254,830.52

Finding the Fourth Proportional to 787,309.40, 1,181,151.57 and 254,830.52

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Solution

The fourth proportional to 787,309.40, 1,181,151.57 and 254,830.52 is: 382,306.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,309.40 : 1,181,151.57 = 254,830.52 : x
  2. Step 2: Convert to fraction form
    787,309.40/1,181,151.57 = 254,830.52/x
  3. Step 3: Cross multiply
    787,309.40x = 1,181,151.57 × 254,830.52
  4. Step 4: Simplify right side
    787,309.40x = 300,993,468,781.92
  5. Step 5: Solve for x
    x = 300,993,468,781.92/787,309.40
  6. Step 6: Final answer
    x = 382,306.46

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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.