Home / 1,215,037.80-1,822,556.70-813,504.60

Finding the Fourth Proportional to 1,215,037.80, 1,822,556.70 and 813,504.60

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Solution

The fourth proportional to 1,215,037.80, 1,822,556.70 and 813,504.60 is: 1,220,256.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,037.80 : 1,822,556.70 = 813,504.60 : x
  2. Step 2: Convert to fraction form
    1,215,037.80/1,822,556.70 = 813,504.60/x
  3. Step 3: Cross multiply
    1,215,037.80x = 1,822,556.70 × 813,504.60
  4. Step 4: Simplify right side
    1,215,037.80x = 1,482,658,259,210.82
  5. Step 5: Solve for x
    x = 1,482,658,259,210.82/1,215,037.80
  6. Step 6: Final answer
    x = 1,220,256.90

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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.