Home / 1,093,345.20-1,638,481.80-869,089.20

Finding the Fourth Proportional to 1,093,345.20, 1,638,481.80 and 869,089.20

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Solution

The fourth proportional to 1,093,345.20, 1,638,481.80 and 869,089.20 is: 1,302,412.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,093,345.20 : 1,638,481.80 = 869,089.20 : x
  2. Step 2: Convert to fraction form
    1,093,345.20/1,638,481.80 = 869,089.20/x
  3. Step 3: Cross multiply
    1,093,345.20x = 1,638,481.80 × 869,089.20
  4. Step 4: Simplify right side
    1,093,345.20x = 1,423,986,836,776.56
  5. Step 5: Solve for x
    x = 1,423,986,836,776.56/1,093,345.20
  6. Step 6: Final answer
    x = 1,302,412.85

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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.