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Finding the Fourth Proportional to 661,850.35, 993,055.52 and 361,980.85

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Solution

The fourth proportional to 661,850.35, 993,055.52 and 361,980.85 is: 543,124.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,850.35 : 993,055.52 = 361,980.85 : x
  2. Step 2: Convert to fraction form
    661,850.35/993,055.52 = 361,980.85/x
  3. Step 3: Cross multiply
    661,850.35x = 993,055.52 × 361,980.85
  4. Step 4: Simplify right side
    661,850.35x = 359,467,081,226.79
  5. Step 5: Solve for x
    x = 359,467,081,226.79/661,850.35
  6. Step 6: Final answer
    x = 543,124.41

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1.5x scale

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.