Home / 1,421,782.71-1,961,472.66-992,314.23

Finding the Fourth Proportional to 1,421,782.71, 1,961,472.66 and 992,314.23

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Solution

The fourth proportional to 1,421,782.71, 1,961,472.66 and 992,314.23 is: 1,368,983.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,421,782.71 : 1,961,472.66 = 992,314.23 : x
  2. Step 2: Convert to fraction form
    1,421,782.71/1,961,472.66 = 992,314.23/x
  3. Step 3: Cross multiply
    1,421,782.71x = 1,961,472.66 × 992,314.23
  4. Step 4: Simplify right side
    1,421,782.71x = 1,946,397,232,273.95
  5. Step 5: Solve for x
    x = 1,946,397,232,273.95/1,421,782.71
  6. Step 6: Final answer
    x = 1,368,983.61

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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.