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Finding the Fourth Proportional to 700,679.26, 966,937.38 and 378,389.34

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Solution

The fourth proportional to 700,679.26, 966,937.38 and 378,389.34 is: 522,177.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    700,679.26 : 966,937.38 = 378,389.34 : x
  2. Step 2: Convert to fraction form
    700,679.26/966,937.38 = 378,389.34/x
  3. Step 3: Cross multiply
    700,679.26x = 966,937.38 × 378,389.34
  4. Step 4: Simplify right side
    700,679.26x = 365,878,797,749.01
  5. Step 5: Solve for x
    x = 365,878,797,749.01/700,679.26
  6. Step 6: Final answer
    x = 522,177.29

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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.