Home / 1,343,840.80-2,013,428.40-870,282.40

Finding the Fourth Proportional to 1,343,840.80, 2,013,428.40 and 870,282.40

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Solution

The fourth proportional to 1,343,840.80, 2,013,428.40 and 870,282.40 is: 1,303,912.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,343,840.80 : 2,013,428.40 = 870,282.40 : x
  2. Step 2: Convert to fraction form
    1,343,840.80/2,013,428.40 = 870,282.40/x
  3. Step 3: Cross multiply
    1,343,840.80x = 2,013,428.40 × 870,282.40
  4. Step 4: Simplify right side
    1,343,840.80x = 1,752,251,300,180.16
  5. Step 5: Solve for x
    x = 1,752,251,300,180.16/1,343,840.80
  6. Step 6: Final answer
    x = 1,303,912.86

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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.