Home / 1,352,020.60-2,028,030.90-820,142.20

Finding the Fourth Proportional to 1,352,020.60, 2,028,030.90 and 820,142.20

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Solution

The fourth proportional to 1,352,020.60, 2,028,030.90 and 820,142.20 is: 1,230,213.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,352,020.60 : 2,028,030.90 = 820,142.20 : x
  2. Step 2: Convert to fraction form
    1,352,020.60/2,028,030.90 = 820,142.20/x
  3. Step 3: Cross multiply
    1,352,020.60x = 2,028,030.90 × 820,142.20
  4. Step 4: Simplify right side
    1,352,020.60x = 1,663,273,723,993.98
  5. Step 5: Solve for x
    x = 1,663,273,723,993.98/1,352,020.60
  6. Step 6: Final answer
    x = 1,230,213.30

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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.