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Finding the Fourth Proportional to 576,048.40, 862,906.20 and 326,438.80

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Solution

The fourth proportional to 576,048.40, 862,906.20 and 326,438.80 is: 488,997.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,048.40 : 862,906.20 = 326,438.80 : x
  2. Step 2: Convert to fraction form
    576,048.40/862,906.20 = 326,438.80/x
  3. Step 3: Cross multiply
    576,048.40x = 862,906.20 × 326,438.80
  4. Step 4: Simplify right side
    576,048.40x = 281,686,064,440.56
  5. Step 5: Solve for x
    x = 281,686,064,440.56/576,048.40
  6. Step 6: Final answer
    x = 488,997.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.