Home / 1,439,970.60-2,158,919.10-809,077.80

Finding the Fourth Proportional to 1,439,970.60, 2,158,919.10 and 809,077.80

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Solution

The fourth proportional to 1,439,970.60, 2,158,919.10 and 809,077.80 is: 1,213,034.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,439,970.60 : 2,158,919.10 = 809,077.80 : x
  2. Step 2: Convert to fraction form
    1,439,970.60/2,158,919.10 = 809,077.80/x
  3. Step 3: Cross multiply
    1,439,970.60x = 2,158,919.10 × 809,077.80
  4. Step 4: Simplify right side
    1,439,970.60x = 1,746,733,515,805.98
  5. Step 5: Solve for x
    x = 1,746,733,515,805.98/1,439,970.60
  6. Step 6: Final answer
    x = 1,213,034.15

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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.