Home / 811,933.40-1,218,072.90-251,024.60

Finding the Fourth Proportional to 811,933.40, 1,218,072.90 and 251,024.60

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Solution

The fourth proportional to 811,933.40, 1,218,072.90 and 251,024.60 is: 376,590.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,933.40 : 1,218,072.90 = 251,024.60 : x
  2. Step 2: Convert to fraction form
    811,933.40/1,218,072.90 = 251,024.60/x
  3. Step 3: Cross multiply
    811,933.40x = 1,218,072.90 × 251,024.60
  4. Step 4: Simplify right side
    811,933.40x = 305,766,262,493.34
  5. Step 5: Solve for x
    x = 305,766,262,493.34/811,933.40
  6. Step 6: Final answer
    x = 376,590.32

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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.