Home / 810,560.93-1,215,866.09-278,074.42

Finding the Fourth Proportional to 810,560.93, 1,215,866.09 and 278,074.42

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Solution

The fourth proportional to 810,560.93, 1,215,866.09 and 278,074.42 is: 417,120.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,560.93 : 1,215,866.09 = 278,074.42 : x
  2. Step 2: Convert to fraction form
    810,560.93/1,215,866.09 = 278,074.42/x
  3. Step 3: Cross multiply
    810,560.93x = 1,215,866.09 × 278,074.42
  4. Step 4: Simplify right side
    810,560.93x = 338,101,255,429.94
  5. Step 5: Solve for x
    x = 338,101,255,429.94/810,560.93
  6. Step 6: Final answer
    x = 417,120.10

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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.