Home / 1,421,872.76-1,962,186.06-818,261.24

Finding the Fourth Proportional to 1,421,872.76, 1,962,186.06 and 818,261.24

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Solution

The fourth proportional to 1,421,872.76, 1,962,186.06 and 818,261.24 is: 1,129,201.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,421,872.76 : 1,962,186.06 = 818,261.24 : x
  2. Step 2: Convert to fraction form
    1,421,872.76/1,962,186.06 = 818,261.24/x
  3. Step 3: Cross multiply
    1,421,872.76x = 1,962,186.06 × 818,261.24
  4. Step 4: Simplify right side
    1,421,872.76x = 1,605,580,798,566.31
  5. Step 5: Solve for x
    x = 1,605,580,798,566.31/1,421,872.76
  6. Step 6: Final answer
    x = 1,129,201.46

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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.