Home / 1,343,836.80-2,013,422.40-870,278.40

Finding the Fourth Proportional to 1,343,836.80, 2,013,422.40 and 870,278.40

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Solution

The fourth proportional to 1,343,836.80, 2,013,422.40 and 870,278.40 is: 1,303,906.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,343,836.80 : 2,013,422.40 = 870,278.40 : x
  2. Step 2: Convert to fraction form
    1,343,836.80/2,013,422.40 = 870,278.40/x
  3. Step 3: Cross multiply
    1,343,836.80x = 2,013,422.40 × 870,278.40
  4. Step 4: Simplify right side
    1,343,836.80x = 1,752,238,024,796.16
  5. Step 5: Solve for x
    x = 1,752,238,024,796.16/1,343,836.80
  6. Step 6: Final answer
    x = 1,303,906.86

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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.