Home / 1,819,204.20-2,728,806.30-1,287,763.20

Finding the Fourth Proportional to 1,819,204.20, 2,728,806.30 and 1,287,763.20

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Solution

The fourth proportional to 1,819,204.20, 2,728,806.30 and 1,287,763.20 is: 1,931,644.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,819,204.20 : 2,728,806.30 = 1,287,763.20 : x
  2. Step 2: Convert to fraction form
    1,819,204.20/2,728,806.30 = 1,287,763.20/x
  3. Step 3: Cross multiply
    1,819,204.20x = 2,728,806.30 × 1,287,763.20
  4. Step 4: Simplify right side
    1,819,204.20x = 3,514,056,333,068.16
  5. Step 5: Solve for x
    x = 3,514,056,333,068.16/1,819,204.20
  6. Step 6: Final answer
    x = 1,931,644.80

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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.