Home / 2,167,129.64-2,990,660.88-1,307,523.80

Finding the Fourth Proportional to 2,167,129.64, 2,990,660.88 and 1,307,523.80

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Solution

The fourth proportional to 2,167,129.64, 2,990,660.88 and 1,307,523.80 is: 1,804,396.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,167,129.64 : 2,990,660.88 = 1,307,523.80 : x
  2. Step 2: Convert to fraction form
    2,167,129.64/2,990,660.88 = 1,307,523.80/x
  3. Step 3: Cross multiply
    2,167,129.64x = 2,990,660.88 × 1,307,523.80
  4. Step 4: Simplify right side
    2,167,129.64x = 3,910,360,278,328.94
  5. Step 5: Solve for x
    x = 3,910,360,278,328.94/2,167,129.64
  6. Step 6: Final answer
    x = 1,804,396.10

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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.