Home / 666,218.40-1,000,105.20-382,135.20

Finding the Fourth Proportional to 666,218.40, 1,000,105.20 and 382,135.20

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Solution

The fourth proportional to 666,218.40, 1,000,105.20 and 382,135.20 is: 573,648.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,218.40 : 1,000,105.20 = 382,135.20 : x
  2. Step 2: Convert to fraction form
    666,218.40/1,000,105.20 = 382,135.20/x
  3. Step 3: Cross multiply
    666,218.40x = 1,000,105.20 × 382,135.20
  4. Step 4: Simplify right side
    666,218.40x = 382,175,400,623.04
  5. Step 5: Solve for x
    x = 382,175,400,623.04/666,218.40
  6. Step 6: Final answer
    x = 573,648.82

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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.