Home / 1,109,787.90-1,663,709.85-753,647.10

Finding the Fourth Proportional to 1,109,787.90, 1,663,709.85 and 753,647.10

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Solution

The fourth proportional to 1,109,787.90, 1,663,709.85 and 753,647.10 is: 1,129,810.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,109,787.90 : 1,663,709.85 = 753,647.10 : x
  2. Step 2: Convert to fraction form
    1,109,787.90/1,663,709.85 = 753,647.10/x
  3. Step 3: Cross multiply
    1,109,787.90x = 1,663,709.85 × 753,647.10
  4. Step 4: Simplify right side
    1,109,787.90x = 1,253,850,103,693.94
  5. Step 5: Solve for x
    x = 1,253,850,103,693.94/1,109,787.90
  6. Step 6: Final answer
    x = 1,129,810.57

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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.