Home / 776,444.15-1,071,215.62-449,578.77

Finding the Fourth Proportional to 776,444.15, 1,071,215.62 and 449,578.77

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Solution

The fourth proportional to 776,444.15, 1,071,215.62 and 449,578.77 is: 620,258.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    776,444.15 : 1,071,215.62 = 449,578.77 : x
  2. Step 2: Convert to fraction form
    776,444.15/1,071,215.62 = 449,578.77/x
  3. Step 3: Cross multiply
    776,444.15x = 1,071,215.62 × 449,578.77
  4. Step 4: Simplify right side
    776,444.15x = 481,595,801,728.97
  5. Step 5: Solve for x
    x = 481,595,801,728.97/776,444.15
  6. Step 6: Final answer
    x = 620,258.14

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1.5x scale

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.