Home / 1,099,191.20-1,648,981.20-389,631.20

Finding the Fourth Proportional to 1,099,191.20, 1,648,981.20 and 389,631.20

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Solution

The fourth proportional to 1,099,191.20, 1,648,981.20 and 389,631.20 is: 584,515.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,099,191.20 : 1,648,981.20 = 389,631.20 : x
  2. Step 2: Convert to fraction form
    1,099,191.20/1,648,981.20 = 389,631.20/x
  3. Step 3: Cross multiply
    1,099,191.20x = 1,648,981.20 × 389,631.20
  4. Step 4: Simplify right side
    1,099,191.20x = 642,494,523,733.44
  5. Step 5: Solve for x
    x = 642,494,523,733.44/1,099,191.20
  6. Step 6: Final answer
    x = 584,515.71

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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.