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Finding the Fourth Proportional to 700,696.31, 966,960.77 and 378,406.35

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Solution

The fourth proportional to 700,696.31, 966,960.77 and 378,406.35 is: 522,200.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    700,696.31 : 966,960.77 = 378,406.35 : x
  2. Step 2: Convert to fraction form
    700,696.31/966,960.77 = 378,406.35/x
  3. Step 3: Cross multiply
    700,696.31x = 966,960.77 × 378,406.35
  4. Step 4: Simplify right side
    700,696.31x = 365,904,093,676.86
  5. Step 5: Solve for x
    x = 365,904,093,676.86/700,696.31
  6. Step 6: Final answer
    x = 522,200.69

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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.