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Finding the Fourth Proportional to 666,348.92, 999,522.62 and 217,069.08

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Solution

The fourth proportional to 666,348.92, 999,522.62 and 217,069.08 is: 325,603.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,348.92 : 999,522.62 = 217,069.08 : x
  2. Step 2: Convert to fraction form
    666,348.92/999,522.62 = 217,069.08/x
  3. Step 3: Cross multiply
    666,348.92x = 999,522.62 × 217,069.08
  4. Step 4: Simplify right side
    666,348.92x = 216,965,451,543.04
  5. Step 5: Solve for x
    x = 216,965,451,543.04/666,348.92
  6. Step 6: Final answer
    x = 325,603.36

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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.