Home / 1,421,897.30-1,962,229.87-810,040.31

Finding the Fourth Proportional to 1,421,897.30, 1,962,229.87 and 810,040.31

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Solution

The fourth proportional to 1,421,897.30, 1,962,229.87 and 810,040.31 is: 1,117,862.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,421,897.30 : 1,962,229.87 = 810,040.31 : x
  2. Step 2: Convert to fraction form
    1,421,897.30/1,962,229.87 = 810,040.31/x
  3. Step 3: Cross multiply
    1,421,897.30x = 1,962,229.87 × 810,040.31
  4. Step 4: Simplify right side
    1,421,897.30x = 1,589,485,282,374.91
  5. Step 5: Solve for x
    x = 1,589,485,282,374.91/1,421,897.30
  6. Step 6: Final answer
    x = 1,117,862.23

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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.