Home / 700,708.10-966,976.98-378,418.10

Finding the Fourth Proportional to 700,708.10, 966,976.98 and 378,418.10

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Solution

The fourth proportional to 700,708.10, 966,976.98 and 378,418.10 is: 522,216.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    700,708.10 : 966,976.98 = 378,418.10 : x
  2. Step 2: Convert to fraction form
    700,708.10/966,976.98 = 378,418.10/x
  3. Step 3: Cross multiply
    700,708.10x = 966,976.98 × 378,418.10
  4. Step 4: Simplify right side
    700,708.10x = 365,921,591,515.34
  5. Step 5: Solve for x
    x = 365,921,591,515.34/700,708.10
  6. Step 6: Final answer
    x = 522,216.87

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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.