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Finding the Fourth Proportional to 443,682, 612,067.08 and 290,653.44

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Solution

The fourth proportional to 443,682, 612,067.08 and 290,653.44 is: 400,961.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,682 : 612,067.08 = 290,653.44 : x
  2. Step 2: Convert to fraction form
    443,682/612,067.08 = 290,653.44/x
  3. Step 3: Cross multiply
    443,682x = 612,067.08 × 290,653.44
  4. Step 4: Simplify right side
    443,682x = 177,899,402,312.76
  5. Step 5: Solve for x
    x = 177,899,402,312.76/443,682
  6. Step 6: Final answer
    x = 400,961.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.