Home / 1,064,855.97-1,471,055.78-921,366.90

Finding the Fourth Proportional to 1,064,855.97, 1,471,055.78 and 921,366.90

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Solution

The fourth proportional to 1,064,855.97, 1,471,055.78 and 921,366.90 is: 1,272,831.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,064,855.97 : 1,471,055.78 = 921,366.90 : x
  2. Step 2: Convert to fraction form
    1,064,855.97/1,471,055.78 = 921,366.90/x
  3. Step 3: Cross multiply
    1,064,855.97x = 1,471,055.78 × 921,366.90
  4. Step 4: Simplify right side
    1,064,855.97x = 1,355,382,106,049.10
  5. Step 5: Solve for x
    x = 1,355,382,106,049.10/1,064,855.97
  6. Step 6: Final answer
    x = 1,272,831.39

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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.