Home / 817,745.20-1,226,180.40-343,895.20

Finding the Fourth Proportional to 817,745.20, 1,226,180.40 and 343,895.20

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Solution

The fourth proportional to 817,745.20, 1,226,180.40 and 343,895.20 is: 515,658.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,745.20 : 1,226,180.40 = 343,895.20 : x
  2. Step 2: Convert to fraction form
    817,745.20/1,226,180.40 = 343,895.20/x
  3. Step 3: Cross multiply
    817,745.20x = 1,226,180.40 × 343,895.20
  4. Step 4: Simplify right side
    817,745.20x = 421,677,553,894.08
  5. Step 5: Solve for x
    x = 421,677,553,894.08/817,745.20
  6. Step 6: Final answer
    x = 515,658.86

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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.