Home / 666,748.94-1,000,021.80-217,469.18

Finding the Fourth Proportional to 666,748.94, 1,000,021.80 and 217,469.18

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Solution

The fourth proportional to 666,748.94, 1,000,021.80 and 217,469.18 is: 326,170.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,748.94 : 1,000,021.80 = 217,469.18 : x
  2. Step 2: Convert to fraction form
    666,748.94/1,000,021.80 = 217,469.18/x
  3. Step 3: Cross multiply
    666,748.94x = 1,000,021.80 × 217,469.18
  4. Step 4: Simplify right side
    666,748.94x = 217,473,920,828.12
  5. Step 5: Solve for x
    x = 217,473,920,828.12/666,748.94
  6. Step 6: Final answer
    x = 326,170.63

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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.