Home / 1,260,867.54-1,739,995.20-687,907.74

Finding the Fourth Proportional to 1,260,867.54, 1,739,995.20 and 687,907.74

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Solution

The fourth proportional to 1,260,867.54, 1,739,995.20 and 687,907.74 is: 949,311.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,260,867.54 : 1,739,995.20 = 687,907.74 : x
  2. Step 2: Convert to fraction form
    1,260,867.54/1,739,995.20 = 687,907.74/x
  3. Step 3: Cross multiply
    1,260,867.54x = 1,739,995.20 × 687,907.74
  4. Step 4: Simplify right side
    1,260,867.54x = 1,196,956,165,642.85
  5. Step 5: Solve for x
    x = 1,196,956,165,642.85/1,260,867.54
  6. Step 6: Final answer
    x = 949,311.59

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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.