Home / 411,949.20-617,146.20-211,587.60

Finding the Fourth Proportional to 411,949.20, 617,146.20 and 211,587.60

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Solution

The fourth proportional to 411,949.20, 617,146.20 and 211,587.60 is: 316,982.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,949.20 : 617,146.20 = 211,587.60 : x
  2. Step 2: Convert to fraction form
    411,949.20/617,146.20 = 211,587.60/x
  3. Step 3: Cross multiply
    411,949.20x = 617,146.20 × 211,587.60
  4. Step 4: Simplify right side
    411,949.20x = 130,580,483,307.12
  5. Step 5: Solve for x
    x = 130,580,483,307.12/411,949.20
  6. Step 6: Final answer
    x = 316,982.00

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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.