Home / 1,517,977.60-2,279,590.80-809,389.60

Finding the Fourth Proportional to 1,517,977.60, 2,279,590.80 and 809,389.60

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Solution

The fourth proportional to 1,517,977.60, 2,279,590.80 and 809,389.60 is: 1,215,483.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,517,977.60 : 2,279,590.80 = 809,389.60 : x
  2. Step 2: Convert to fraction form
    1,517,977.60/2,279,590.80 = 809,389.60/x
  3. Step 3: Cross multiply
    1,517,977.60x = 2,279,590.80 × 809,389.60
  4. Step 4: Simplify right side
    1,517,977.60x = 1,845,077,085,775.68
  5. Step 5: Solve for x
    x = 1,845,077,085,775.68/1,517,977.60
  6. Step 6: Final answer
    x = 1,215,483.74

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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.