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Finding the Fourth Proportional to 1,432,977.78, 1,976,389.96 and 888,808.44

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Solution

The fourth proportional to 1,432,977.78, 1,976,389.96 and 888,808.44 is: 1,225,861.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,432,977.78 : 1,976,389.96 = 888,808.44 : x
  2. Step 2: Convert to fraction form
    1,432,977.78/1,976,389.96 = 888,808.44/x
  3. Step 3: Cross multiply
    1,432,977.78x = 1,976,389.96 × 888,808.44
  4. Step 4: Simplify right side
    1,432,977.78x = 1,756,632,077,179.26
  5. Step 5: Solve for x
    x = 1,756,632,077,179.26/1,432,977.78
  6. Step 6: Final answer
    x = 1,225,861.35

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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.