Home / 411,730.29-617,502.15-209,120.94

Finding the Fourth Proportional to 411,730.29, 617,502.15 and 209,120.94

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Solution

The fourth proportional to 411,730.29, 617,502.15 and 209,120.94 is: 313,634.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,730.29 : 617,502.15 = 209,120.94 : x
  2. Step 2: Convert to fraction form
    411,730.29/617,502.15 = 209,120.94/x
  3. Step 3: Cross multiply
    411,730.29x = 617,502.15 × 209,120.94
  4. Step 4: Simplify right side
    411,730.29x = 129,132,630,060.02
  5. Step 5: Solve for x
    x = 129,132,630,060.02/411,730.29
  6. Step 6: Final answer
    x = 313,634.03

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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.