Home / 1,211,204.40-1,816,806.60-579,793.20

Finding the Fourth Proportional to 1,211,204.40, 1,816,806.60 and 579,793.20

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Solution

The fourth proportional to 1,211,204.40, 1,816,806.60 and 579,793.20 is: 869,689.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,204.40 : 1,816,806.60 = 579,793.20 : x
  2. Step 2: Convert to fraction form
    1,211,204.40/1,816,806.60 = 579,793.20/x
  3. Step 3: Cross multiply
    1,211,204.40x = 1,816,806.60 × 579,793.20
  4. Step 4: Simplify right side
    1,211,204.40x = 1,053,372,112,395.12
  5. Step 5: Solve for x
    x = 1,053,372,112,395.12/1,211,204.40
  6. Step 6: Final answer
    x = 869,689.80

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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.