Home / 3,178,291.45-4,766,926.42-872,245.78

Finding the Fourth Proportional to 3,178,291.45, 4,766,926.42 and 872,245.78

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Solution

The fourth proportional to 3,178,291.45, 4,766,926.42 and 872,245.78 is: 1,308,228.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,178,291.45 : 4,766,926.42 = 872,245.78 : x
  2. Step 2: Convert to fraction form
    3,178,291.45/4,766,926.42 = 872,245.78/x
  3. Step 3: Cross multiply
    3,178,291.45x = 4,766,926.42 × 872,245.78
  4. Step 4: Simplify right side
    3,178,291.45x = 4,157,931,451,089.10
  5. Step 5: Solve for x
    x = 4,157,931,451,089.10/3,178,291.45
  6. Step 6: Final answer
    x = 1,308,228.50

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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.