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Finding the Fourth Proportional to 1,865,370.80, 2,798,747.40 and 744,244.40

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Solution

The fourth proportional to 1,865,370.80, 2,798,747.40 and 744,244.40 is: 1,116,642.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,865,370.80 : 2,798,747.40 = 744,244.40 : x
  2. Step 2: Convert to fraction form
    1,865,370.80/2,798,747.40 = 744,244.40/x
  3. Step 3: Cross multiply
    1,865,370.80x = 2,798,747.40 × 744,244.40
  4. Step 4: Simplify right side
    1,865,370.80x = 2,082,952,079,464.56
  5. Step 5: Solve for x
    x = 2,082,952,079,464.56/1,865,370.80
  6. Step 6: Final answer
    x = 1,116,642.37

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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.