Home / 790,873.77-1,186,065.53-285,369.38

Finding the Fourth Proportional to 790,873.77, 1,186,065.53 and 285,369.38

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Solution

The fourth proportional to 790,873.77, 1,186,065.53 and 285,369.38 is: 427,965.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,873.77 : 1,186,065.53 = 285,369.38 : x
  2. Step 2: Convert to fraction form
    790,873.77/1,186,065.53 = 285,369.38/x
  3. Step 3: Cross multiply
    790,873.77x = 1,186,065.53 × 285,369.38
  4. Step 4: Simplify right side
    790,873.77x = 338,466,777,578.30
  5. Step 5: Solve for x
    x = 338,466,777,578.30/790,873.77
  6. Step 6: Final answer
    x = 427,965.61

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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.