Home / 1,445,389.40-1,994,653.41-800,819.75

Finding the Fourth Proportional to 1,445,389.40, 1,994,653.41 and 800,819.75

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Solution

The fourth proportional to 1,445,389.40, 1,994,653.41 and 800,819.75 is: 1,105,140.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,445,389.40 : 1,994,653.41 = 800,819.75 : x
  2. Step 2: Convert to fraction form
    1,445,389.40/1,994,653.41 = 800,819.75/x
  3. Step 3: Cross multiply
    1,445,389.40x = 1,994,653.41 × 800,819.75
  4. Step 4: Simplify right side
    1,445,389.40x = 1,597,357,845,132.85
  5. Step 5: Solve for x
    x = 1,597,357,845,132.85/1,445,389.40
  6. Step 6: Final answer
    x = 1,105,140.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.