Home / 1,260,682.47-1,739,738.16-687,718.53

Finding the Fourth Proportional to 1,260,682.47, 1,739,738.16 and 687,718.53

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Solution

The fourth proportional to 1,260,682.47, 1,739,738.16 and 687,718.53 is: 949,049.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,260,682.47 : 1,739,738.16 = 687,718.53 : x
  2. Step 2: Convert to fraction form
    1,260,682.47/1,739,738.16 = 687,718.53/x
  3. Step 3: Cross multiply
    1,260,682.47x = 1,739,738.16 × 687,718.53
  4. Step 4: Simplify right side
    1,260,682.47x = 1,196,450,169,980.10
  5. Step 5: Solve for x
    x = 1,196,450,169,980.10/1,260,682.47
  6. Step 6: Final answer
    x = 949,049.58

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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.