Home / 1,223,842.80-1,836,420.30-513,942.60

Finding the Fourth Proportional to 1,223,842.80, 1,836,420.30 and 513,942.60

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Solution

The fourth proportional to 1,223,842.80, 1,836,420.30 and 513,942.60 is: 771,189.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,223,842.80 : 1,836,420.30 = 513,942.60 : x
  2. Step 2: Convert to fraction form
    1,223,842.80/1,836,420.30 = 513,942.60/x
  3. Step 3: Cross multiply
    1,223,842.80x = 1,836,420.30 × 513,942.60
  4. Step 4: Simplify right side
    1,223,842.80x = 943,814,623,674.78
  5. Step 5: Solve for x
    x = 943,814,623,674.78/1,223,842.80
  6. Step 6: Final answer
    x = 771,189.42

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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.