Home / 729,630.20-1,006,906.64-457,709.56

Finding the Fourth Proportional to 729,630.20, 1,006,906.64 and 457,709.56

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Solution

The fourth proportional to 729,630.20, 1,006,906.64 and 457,709.56 is: 631,649.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,630.20 : 1,006,906.64 = 457,709.56 : x
  2. Step 2: Convert to fraction form
    729,630.20/1,006,906.64 = 457,709.56/x
  3. Step 3: Cross multiply
    729,630.20x = 1,006,906.64 × 457,709.56
  4. Step 4: Simplify right side
    729,630.20x = 460,870,795,155.48
  5. Step 5: Solve for x
    x = 460,870,795,155.48/729,630.20
  6. Step 6: Final answer
    x = 631,649.83

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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.