Home / 1,390,660.80-2,086,768.80-591,806.40

Finding the Fourth Proportional to 1,390,660.80, 2,086,768.80 and 591,806.40

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Solution

The fourth proportional to 1,390,660.80, 2,086,768.80 and 591,806.40 is: 888,040.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,390,660.80 : 2,086,768.80 = 591,806.40 : x
  2. Step 2: Convert to fraction form
    1,390,660.80/2,086,768.80 = 591,806.40/x
  3. Step 3: Cross multiply
    1,390,660.80x = 2,086,768.80 × 591,806.40
  4. Step 4: Simplify right side
    1,390,660.80x = 1,234,963,131,160.32
  5. Step 5: Solve for x
    x = 1,234,963,131,160.32/1,390,660.80
  6. Step 6: Final answer
    x = 888,040.51

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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.