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Finding the Fourth Proportional to 440,104.28, 606,472.99 and 312,422.36

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Solution

The fourth proportional to 440,104.28, 606,472.99 and 312,422.36 is: 430,524.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,104.28 : 606,472.99 = 312,422.36 : x
  2. Step 2: Convert to fraction form
    440,104.28/606,472.99 = 312,422.36/x
  3. Step 3: Cross multiply
    440,104.28x = 606,472.99 × 312,422.36
  4. Step 4: Simplify right side
    440,104.28x = 189,475,718,998.64
  5. Step 5: Solve for x
    x = 189,475,718,998.64/440,104.28
  6. Step 6: Final answer
    x = 430,524.60

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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.