Home / 1,289,376.80-1,934,065.20-329,830.55

Finding the Fourth Proportional to 1,289,376.80, 1,934,065.20 and 329,830.55

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Solution

The fourth proportional to 1,289,376.80, 1,934,065.20 and 329,830.55 is: 494,745.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289,376.80 : 1,934,065.20 = 329,830.55 : x
  2. Step 2: Convert to fraction form
    1,289,376.80/1,934,065.20 = 329,830.55/x
  3. Step 3: Cross multiply
    1,289,376.80x = 1,934,065.20 × 329,830.55
  4. Step 4: Simplify right side
    1,289,376.80x = 637,913,788,651.86
  5. Step 5: Solve for x
    x = 637,913,788,651.86/1,289,376.80
  6. Step 6: Final answer
    x = 494,745.83

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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.