Home / 1,297,215.28-1,790,039.28-724,150

Finding the Fourth Proportional to 1,297,215.28, 1,790,039.28 and 724,150

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Solution

The fourth proportional to 1,297,215.28, 1,790,039.28 and 724,150 is: 999,261.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,297,215.28 : 1,790,039.28 = 724,150 : x
  2. Step 2: Convert to fraction form
    1,297,215.28/1,790,039.28 = 724,150/x
  3. Step 3: Cross multiply
    1,297,215.28x = 1,790,039.28 × 724,150
  4. Step 4: Simplify right side
    1,297,215.28x = 1,296,256,944,612
  5. Step 5: Solve for x
    x = 1,296,256,944,612/1,297,215.28
  6. Step 6: Final answer
    x = 999,261.24

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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.