Home / 1,618,388.70-2,426,999.85-819,404.70

Finding the Fourth Proportional to 1,618,388.70, 2,426,999.85 and 819,404.70

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Solution

The fourth proportional to 1,618,388.70, 2,426,999.85 and 819,404.70 is: 1,228,811.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,618,388.70 : 2,426,999.85 = 819,404.70 : x
  2. Step 2: Convert to fraction form
    1,618,388.70/2,426,999.85 = 819,404.70/x
  3. Step 3: Cross multiply
    1,618,388.70x = 2,426,999.85 × 819,404.70
  4. Step 4: Simplify right side
    1,618,388.70x = 1,988,695,083,989.30
  5. Step 5: Solve for x
    x = 1,988,695,083,989.30/1,618,388.70
  6. Step 6: Final answer
    x = 1,228,811.77

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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.