Home / 2,129,230.13-3,194,348.63-689,911.16

Finding the Fourth Proportional to 2,129,230.13, 3,194,348.63 and 689,911.16

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Solution

The fourth proportional to 2,129,230.13, 3,194,348.63 and 689,911.16 is: 1,035,029.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,129,230.13 : 3,194,348.63 = 689,911.16 : x
  2. Step 2: Convert to fraction form
    2,129,230.13/3,194,348.63 = 689,911.16/x
  3. Step 3: Cross multiply
    2,129,230.13x = 3,194,348.63 × 689,911.16
  4. Step 4: Simplify right side
    2,129,230.13x = 2,203,816,749,346.41
  5. Step 5: Solve for x
    x = 2,203,816,749,346.41/2,129,230.13
  6. Step 6: Final answer
    x = 1,035,029.86

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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.