Home / 1,428,339.96-1,971,082.22-783,754.53

Finding the Fourth Proportional to 1,428,339.96, 1,971,082.22 and 783,754.53

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Solution

The fourth proportional to 1,428,339.96, 1,971,082.22 and 783,754.53 is: 1,081,566.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,428,339.96 : 1,971,082.22 = 783,754.53 : x
  2. Step 2: Convert to fraction form
    1,428,339.96/1,971,082.22 = 783,754.53/x
  3. Step 3: Cross multiply
    1,428,339.96x = 1,971,082.22 × 783,754.53
  4. Step 4: Simplify right side
    1,428,339.96x = 1,544,844,615,008.68
  5. Step 5: Solve for x
    x = 1,544,844,615,008.68/1,428,339.96
  6. Step 6: Final answer
    x = 1,081,566.47

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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.