Home / 1,260,891.12-1,740,035.52-687,943.20

Finding the Fourth Proportional to 1,260,891.12, 1,740,035.52 and 687,943.20

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Solution

The fourth proportional to 1,260,891.12, 1,740,035.52 and 687,943.20 is: 949,364.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,260,891.12 : 1,740,035.52 = 687,943.20 : x
  2. Step 2: Convert to fraction form
    1,260,891.12/1,740,035.52 = 687,943.20/x
  3. Step 3: Cross multiply
    1,260,891.12x = 1,740,035.52 × 687,943.20
  4. Step 4: Simplify right side
    1,260,891.12x = 1,197,045,603,742.46
  5. Step 5: Solve for x
    x = 1,197,045,603,742.46/1,260,891.12
  6. Step 6: Final answer
    x = 949,364.77

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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.