Home / 776,440.29-1,071,210.27-449,574.89

Finding the Fourth Proportional to 776,440.29, 1,071,210.27 and 449,574.89

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Solution

The fourth proportional to 776,440.29, 1,071,210.27 and 449,574.89 is: 620,252.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    776,440.29 : 1,071,210.27 = 449,574.89 : x
  2. Step 2: Convert to fraction form
    776,440.29/1,071,210.27 = 449,574.89/x
  3. Step 3: Cross multiply
    776,440.29x = 1,071,210.27 × 449,574.89
  4. Step 4: Simplify right side
    776,440.29x = 481,589,233,103.12
  5. Step 5: Solve for x
    x = 481,589,233,103.12/776,440.29
  6. Step 6: Final answer
    x = 620,252.76

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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.