Home / 921,029.05-1,381,857.27-561,918.84

Finding the Fourth Proportional to 921,029.05, 1,381,857.27 and 561,918.84

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Solution

The fourth proportional to 921,029.05, 1,381,857.27 and 561,918.84 is: 843,069.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,029.05 : 1,381,857.27 = 561,918.84 : x
  2. Step 2: Convert to fraction form
    921,029.05/1,381,857.27 = 561,918.84/x
  3. Step 3: Cross multiply
    921,029.05x = 1,381,857.27 × 561,918.84
  4. Step 4: Simplify right side
    921,029.05x = 776,491,634,203.97
  5. Step 5: Solve for x
    x = 776,491,634,203.97/921,029.05
  6. Step 6: Final answer
    x = 843,069.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.