Home / 741,639.78-1,023,457.19-419,361.35

Finding the Fourth Proportional to 741,639.78, 1,023,457.19 and 419,361.35

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Solution

The fourth proportional to 741,639.78, 1,023,457.19 and 419,361.35 is: 578,715.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    741,639.78 : 1,023,457.19 = 419,361.35 : x
  2. Step 2: Convert to fraction form
    741,639.78/1,023,457.19 = 419,361.35/x
  3. Step 3: Cross multiply
    741,639.78x = 1,023,457.19 × 419,361.35
  4. Step 4: Simplify right side
    741,639.78x = 429,198,381,651.51
  5. Step 5: Solve for x
    x = 429,198,381,651.51/741,639.78
  6. Step 6: Final answer
    x = 578,715.43

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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.