Home / 816,785.32-1,225,528.62-284,015.80

Finding the Fourth Proportional to 816,785.32, 1,225,528.62 and 284,015.80

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Solution

The fourth proportional to 816,785.32, 1,225,528.62 and 284,015.80 is: 426,145.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,785.32 : 1,225,528.62 = 284,015.80 : x
  2. Step 2: Convert to fraction form
    816,785.32/1,225,528.62 = 284,015.80/x
  3. Step 3: Cross multiply
    816,785.32x = 1,225,528.62 × 284,015.80
  4. Step 4: Simplify right side
    816,785.32x = 348,069,491,432.20
  5. Step 5: Solve for x
    x = 348,069,491,432.20/816,785.32
  6. Step 6: Final answer
    x = 426,145.63

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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.