Home / 1,812,239.40-2,719,233.90-1,278,611.40

Finding the Fourth Proportional to 1,812,239.40, 2,719,233.90 and 1,278,611.40

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Solution

The fourth proportional to 1,812,239.40, 2,719,233.90 and 1,278,611.40 is: 1,918,534.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,812,239.40 : 2,719,233.90 = 1,278,611.40 : x
  2. Step 2: Convert to fraction form
    1,812,239.40/2,719,233.90 = 1,278,611.40/x
  3. Step 3: Cross multiply
    1,812,239.40x = 2,719,233.90 × 1,278,611.40
  4. Step 4: Simplify right side
    1,812,239.40x = 3,476,843,463,806.46
  5. Step 5: Solve for x
    x = 3,476,843,463,806.46/1,812,239.40
  6. Step 6: Final answer
    x = 1,918,534.31

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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.