Home / 1,530,967.77-2,112,375.02-1,286,880.30

Finding the Fourth Proportional to 1,530,967.77, 2,112,375.02 and 1,286,880.30

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Solution

The fourth proportional to 1,530,967.77, 2,112,375.02 and 1,286,880.30 is: 1,775,591.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,530,967.77 : 2,112,375.02 = 1,286,880.30 : x
  2. Step 2: Convert to fraction form
    1,530,967.77/2,112,375.02 = 1,286,880.30/x
  3. Step 3: Cross multiply
    1,530,967.77x = 2,112,375.02 × 1,286,880.30
  4. Step 4: Simplify right side
    1,530,967.77x = 2,718,373,793,015.70
  5. Step 5: Solve for x
    x = 2,718,373,793,015.70/1,530,967.77
  6. Step 6: Final answer
    x = 1,775,591.78

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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.