Home / 1,728,020.20-2,588,531.10-979,191.40

Finding the Fourth Proportional to 1,728,020.20, 2,588,531.10 and 979,191.40

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Solution

The fourth proportional to 1,728,020.20, 2,588,531.10 and 979,191.40 is: 1,466,804.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,728,020.20 : 2,588,531.10 = 979,191.40 : x
  2. Step 2: Convert to fraction form
    1,728,020.20/2,588,531.10 = 979,191.40/x
  3. Step 3: Cross multiply
    1,728,020.20x = 2,588,531.10 × 979,191.40
  4. Step 4: Simplify right side
    1,728,020.20x = 2,534,667,391,752.54
  5. Step 5: Solve for x
    x = 2,534,667,391,752.54/1,728,020.20
  6. Step 6: Final answer
    x = 1,466,804.26

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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.