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Finding the Fourth Proportional to 700,701.72, 966,968.34 and 378,411.84

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Solution

The fourth proportional to 700,701.72, 966,968.34 and 378,411.84 is: 522,208.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    700,701.72 : 966,968.34 = 378,411.84 : x
  2. Step 2: Convert to fraction form
    700,701.72/966,968.34 = 378,411.84/x
  3. Step 3: Cross multiply
    700,701.72x = 966,968.34 × 378,411.84
  4. Step 4: Simplify right side
    700,701.72x = 365,912,268,761.15
  5. Step 5: Solve for x
    x = 365,912,268,761.15/700,701.72
  6. Step 6: Final answer
    x = 522,208.32

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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.