Home / 1,190,806.40-1,786,180.80-717,132.80

Finding the Fourth Proportional to 1,190,806.40, 1,786,180.80 and 717,132.80

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Solution

The fourth proportional to 1,190,806.40, 1,786,180.80 and 717,132.80 is: 1,075,681.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,190,806.40 : 1,786,180.80 = 717,132.80 : x
  2. Step 2: Convert to fraction form
    1,190,806.40/1,786,180.80 = 717,132.80/x
  3. Step 3: Cross multiply
    1,190,806.40x = 1,786,180.80 × 717,132.80
  4. Step 4: Simplify right side
    1,190,806.40x = 1,280,928,838,410.24
  5. Step 5: Solve for x
    x = 1,280,928,838,410.24/1,190,806.40
  6. Step 6: Final answer
    x = 1,075,681.86

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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.