Home / 1,396,492.79-2,094,682.28-485,883.72

Finding the Fourth Proportional to 1,396,492.79, 2,094,682.28 and 485,883.72

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Solution

The fourth proportional to 1,396,492.79, 2,094,682.28 and 485,883.72 is: 728,805.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,396,492.79 : 2,094,682.28 = 485,883.72 : x
  2. Step 2: Convert to fraction form
    1,396,492.79/2,094,682.28 = 485,883.72/x
  3. Step 3: Cross multiply
    1,396,492.79x = 2,094,682.28 × 485,883.72
  4. Step 4: Simplify right side
    1,396,492.79x = 1,017,772,015,995.06
  5. Step 5: Solve for x
    x = 1,017,772,015,995.06/1,396,492.79
  6. Step 6: Final answer
    x = 728,805.78

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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.