Home / 1,843,712.20-2,765,957.10-778,205.80

Finding the Fourth Proportional to 1,843,712.20, 2,765,957.10 and 778,205.80

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Solution

The fourth proportional to 1,843,712.20, 2,765,957.10 and 778,205.80 is: 1,167,472.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,843,712.20 : 2,765,957.10 = 778,205.80 : x
  2. Step 2: Convert to fraction form
    1,843,712.20/2,765,957.10 = 778,205.80/x
  3. Step 3: Cross multiply
    1,843,712.20x = 2,765,957.10 × 778,205.80
  4. Step 4: Simplify right side
    1,843,712.20x = 2,152,483,857,771.18
  5. Step 5: Solve for x
    x = 2,152,483,857,771.18/1,843,712.20
  6. Step 6: Final answer
    x = 1,167,472.81

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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.