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Finding the Fourth Proportional to 666,894.74, 1,000,446.03 and 217,511.06

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Solution

The fourth proportional to 666,894.74, 1,000,446.03 and 217,511.06 is: 326,300.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,894.74 : 1,000,446.03 = 217,511.06 : x
  2. Step 2: Convert to fraction form
    666,894.74/1,000,446.03 = 217,511.06/x
  3. Step 3: Cross multiply
    666,894.74x = 1,000,446.03 × 217,511.06
  4. Step 4: Simplify right side
    666,894.74x = 217,608,076,458.09
  5. Step 5: Solve for x
    x = 217,608,076,458.09/666,894.74
  6. Step 6: Final answer
    x = 326,300.48

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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.