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Finding the Fourth Proportional to 526,891.10, 788,003.85 and 442,910.30

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Solution

The fourth proportional to 526,891.10, 788,003.85 and 442,910.30 is: 662,404.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,891.10 : 788,003.85 = 442,910.30 : x
  2. Step 2: Convert to fraction form
    526,891.10/788,003.85 = 442,910.30/x
  3. Step 3: Cross multiply
    526,891.10x = 788,003.85 × 442,910.30
  4. Step 4: Simplify right side
    526,891.10x = 349,015,021,604.66
  5. Step 5: Solve for x
    x = 349,015,021,604.66/526,891.10
  6. Step 6: Final answer
    x = 662,404.47

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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.