Home / 2,190,939.10-3,286,408.65-770,983.90

Finding the Fourth Proportional to 2,190,939.10, 3,286,408.65 and 770,983.90

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Solution

The fourth proportional to 2,190,939.10, 3,286,408.65 and 770,983.90 is: 1,156,475.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,190,939.10 : 3,286,408.65 = 770,983.90 : x
  2. Step 2: Convert to fraction form
    2,190,939.10/3,286,408.65 = 770,983.90/x
  3. Step 3: Cross multiply
    2,190,939.10x = 3,286,408.65 × 770,983.90
  4. Step 4: Simplify right side
    2,190,939.10x = 2,533,768,157,970.74
  5. Step 5: Solve for x
    x = 2,533,768,157,970.74/2,190,939.10
  6. Step 6: Final answer
    x = 1,156,475.85

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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.