Home / 2,991,890.20-4,487,835.30-748,028.20

Finding the Fourth Proportional to 2,991,890.20, 4,487,835.30 and 748,028.20

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Solution

The fourth proportional to 2,991,890.20, 4,487,835.30 and 748,028.20 is: 1,122,042.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,991,890.20 : 4,487,835.30 = 748,028.20 : x
  2. Step 2: Convert to fraction form
    2,991,890.20/4,487,835.30 = 748,028.20/x
  3. Step 3: Cross multiply
    2,991,890.20x = 4,487,835.30 × 748,028.20
  4. Step 4: Simplify right side
    2,991,890.20x = 3,357,027,361,355.46
  5. Step 5: Solve for x
    x = 3,357,027,361,355.46/2,991,890.20
  6. Step 6: Final answer
    x = 1,122,042.30

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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.