Home / 1,215,007.80-1,822,511.70-896,143.20

Finding the Fourth Proportional to 1,215,007.80, 1,822,511.70 and 896,143.20

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Solution

The fourth proportional to 1,215,007.80, 1,822,511.70 and 896,143.20 is: 1,344,214.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,007.80 : 1,822,511.70 = 896,143.20 : x
  2. Step 2: Convert to fraction form
    1,215,007.80/1,822,511.70 = 896,143.20/x
  3. Step 3: Cross multiply
    1,215,007.80x = 1,822,511.70 × 896,143.20
  4. Step 4: Simplify right side
    1,215,007.80x = 1,633,231,466,875.44
  5. Step 5: Solve for x
    x = 1,633,231,466,875.44/1,215,007.80
  6. Step 6: Final answer
    x = 1,344,214.80

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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.