Home / 666,311.25-999,166.47-329,220.44

Finding the Fourth Proportional to 666,311.25, 999,166.47 and 329,220.44

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Solution

The fourth proportional to 666,311.25, 999,166.47 and 329,220.44 is: 493,682.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,311.25 : 999,166.47 = 329,220.44 : x
  2. Step 2: Convert to fraction form
    666,311.25/999,166.47 = 329,220.44/x
  3. Step 3: Cross multiply
    666,311.25x = 999,166.47 × 329,220.44
  4. Step 4: Simplify right side
    666,311.25x = 328,946,024,886.65
  5. Step 5: Solve for x
    x = 328,946,024,886.65/666,311.25
  6. Step 6: Final answer
    x = 493,682.23

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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.