Home / 1,297,301.28-1,790,386.47-724,452.17

Finding the Fourth Proportional to 1,297,301.28, 1,790,386.47 and 724,452.17

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Solution

The fourth proportional to 1,297,301.28, 1,790,386.47 and 724,452.17 is: 999,805.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,297,301.28 : 1,790,386.47 = 724,452.17 : x
  2. Step 2: Convert to fraction form
    1,297,301.28/1,790,386.47 = 724,452.17/x
  3. Step 3: Cross multiply
    1,297,301.28x = 1,790,386.47 × 724,452.17
  4. Step 4: Simplify right side
    1,297,301.28x = 1,297,049,364,449.13
  5. Step 5: Solve for x
    x = 1,297,049,364,449.13/1,297,301.28
  6. Step 6: Final answer
    x = 999,805.81

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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.