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Finding the Fourth Proportional to 1,339,845.44, 1,849,069.42 and 766,872.50

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Solution

The fourth proportional to 1,339,845.44, 1,849,069.42 and 766,872.50 is: 1,058,331.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,339,845.44 : 1,849,069.42 = 766,872.50 : x
  2. Step 2: Convert to fraction form
    1,339,845.44/1,849,069.42 = 766,872.50/x
  3. Step 3: Cross multiply
    1,339,845.44x = 1,849,069.42 × 766,872.50
  4. Step 4: Simplify right side
    1,339,845.44x = 1,418,000,477,626.42
  5. Step 5: Solve for x
    x = 1,418,000,477,626.42/1,339,845.44
  6. Step 6: Final answer
    x = 1,058,331.39

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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.