Home / 1,422,405.93-1,962,857.70-810,691.10

Finding the Fourth Proportional to 1,422,405.93, 1,962,857.70 and 810,691.10

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Solution

The fourth proportional to 1,422,405.93, 1,962,857.70 and 810,691.10 is: 1,118,718.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,422,405.93 : 1,962,857.70 = 810,691.10 : x
  2. Step 2: Convert to fraction form
    1,422,405.93/1,962,857.70 = 810,691.10/x
  3. Step 3: Cross multiply
    1,422,405.93x = 1,962,857.70 × 810,691.10
  4. Step 4: Simplify right side
    1,422,405.93x = 1,591,271,267,956.47
  5. Step 5: Solve for x
    x = 1,591,271,267,956.47/1,422,405.93
  6. Step 6: Final answer
    x = 1,118,718.11

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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.