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Finding the Fourth Proportional to 552,419.40, 826,660.80 and 383,145.60

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Solution

The fourth proportional to 552,419.40, 826,660.80 and 383,145.60 is: 573,353.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,419.40 : 826,660.80 = 383,145.60 : x
  2. Step 2: Convert to fraction form
    552,419.40/826,660.80 = 383,145.60/x
  3. Step 3: Cross multiply
    552,419.40x = 826,660.80 × 383,145.60
  4. Step 4: Simplify right side
    552,419.40x = 316,731,448,212.48
  5. Step 5: Solve for x
    x = 316,731,448,212.48/552,419.40
  6. Step 6: Final answer
    x = 573,353.23

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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.