Home / 2,643,617.40-3,965,512.32-1,258,450.80

Finding the Fourth Proportional to 2,643,617.40, 3,965,512.32 and 1,258,450.80

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Solution

The fourth proportional to 2,643,617.40, 3,965,512.32 and 1,258,450.80 is: 1,887,717.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,643,617.40 : 3,965,512.32 = 1,258,450.80 : x
  2. Step 2: Convert to fraction form
    2,643,617.40/3,965,512.32 = 1,258,450.80/x
  3. Step 3: Cross multiply
    2,643,617.40x = 3,965,512.32 × 1,258,450.80
  4. Step 4: Simplify right side
    2,643,617.40x = 4,990,402,151,513.86
  5. Step 5: Solve for x
    x = 4,990,402,151,513.86/2,643,617.40
  6. Step 6: Final answer
    x = 1,887,717.24

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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.