Home / 1,006,381-1,388,805.78-553,662.28

Finding the Fourth Proportional to 1,006,381, 1,388,805.78 and 553,662.28

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Solution

The fourth proportional to 1,006,381, 1,388,805.78 and 553,662.28 is: 764,053.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,006,381 : 1,388,805.78 = 553,662.28 : x
  2. Step 2: Convert to fraction form
    1,006,381/1,388,805.78 = 553,662.28/x
  3. Step 3: Cross multiply
    1,006,381x = 1,388,805.78 × 553,662.28
  4. Step 4: Simplify right side
    1,006,381x = 768,929,374,631.98
  5. Step 5: Solve for x
    x = 768,929,374,631.98/1,006,381
  6. Step 6: Final answer
    x = 764,053.95

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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.