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Finding the Fourth Proportional to 1,270,822, 1,754,128.02 and 818,113

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Solution

The fourth proportional to 1,270,822, 1,754,128.02 and 818,113 is: 1,129,249.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,270,822 : 1,754,128.02 = 818,113 : x
  2. Step 2: Convert to fraction form
    1,270,822/1,754,128.02 = 818,113/x
  3. Step 3: Cross multiply
    1,270,822x = 1,754,128.02 × 818,113
  4. Step 4: Simplify right side
    1,270,822x = 1,435,074,936,826.26
  5. Step 5: Solve for x
    x = 1,435,074,936,826.26/1,270,822
  6. Step 6: Final answer
    x = 1,129,249.37

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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.