Home / 1,099,368.32-1,517,426.88-646,805.12

Finding the Fourth Proportional to 1,099,368.32, 1,517,426.88 and 646,805.12

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Solution

The fourth proportional to 1,099,368.32, 1,517,426.88 and 646,805.12 is: 892,766.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,099,368.32 : 1,517,426.88 = 646,805.12 : x
  2. Step 2: Convert to fraction form
    1,099,368.32/1,517,426.88 = 646,805.12/x
  3. Step 3: Cross multiply
    1,099,368.32x = 1,517,426.88 × 646,805.12
  4. Step 4: Simplify right side
    1,099,368.32x = 981,479,475,209.63
  5. Step 5: Solve for x
    x = 981,479,475,209.63/1,099,368.32
  6. Step 6: Final answer
    x = 892,766.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.