Home / 1,422,402.78-1,962,815.04-810,536.07

Finding the Fourth Proportional to 1,422,402.78, 1,962,815.04 and 810,536.07

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Solution

The fourth proportional to 1,422,402.78, 1,962,815.04 and 810,536.07 is: 1,118,482.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,422,402.78 : 1,962,815.04 = 810,536.07 : x
  2. Step 2: Convert to fraction form
    1,422,402.78/1,962,815.04 = 810,536.07/x
  3. Step 3: Cross multiply
    1,422,402.78x = 1,962,815.04 × 810,536.07
  4. Step 4: Simplify right side
    1,422,402.78x = 1,590,932,388,658.49
  5. Step 5: Solve for x
    x = 1,590,932,388,658.49/1,422,402.78
  6. Step 6: Final answer
    x = 1,118,482.34

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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.