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Finding the Fourth Proportional to 555,611.44, 766,728.10 and 326,165.07

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Solution

The fourth proportional to 555,611.44, 766,728.10 and 326,165.07 is: 450,098.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,611.44 : 766,728.10 = 326,165.07 : x
  2. Step 2: Convert to fraction form
    555,611.44/766,728.10 = 326,165.07/x
  3. Step 3: Cross multiply
    555,611.44x = 766,728.10 × 326,165.07
  4. Step 4: Simplify right side
    555,611.44x = 250,079,920,573.83
  5. Step 5: Solve for x
    x = 250,079,920,573.83/555,611.44
  6. Step 6: Final answer
    x = 450,098.58

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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.