Home / 411,664.20-617,495.58-212,041.65

Finding the Fourth Proportional to 411,664.20, 617,495.58 and 212,041.65

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Solution

The fourth proportional to 411,664.20, 617,495.58 and 212,041.65 is: 318,062.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,664.20 : 617,495.58 = 212,041.65 : x
  2. Step 2: Convert to fraction form
    411,664.20/617,495.58 = 212,041.65/x
  3. Step 3: Cross multiply
    411,664.20x = 617,495.58 × 212,041.65
  4. Step 4: Simplify right side
    411,664.20x = 130,934,781,650.91
  5. Step 5: Solve for x
    x = 130,934,781,650.91/411,664.20
  6. Step 6: Final answer
    x = 318,062.10

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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.