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Finding the Fourth Proportional to 580,335.40, 869,811.90 and 243,375.40

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Solution

The fourth proportional to 580,335.40, 869,811.90 and 243,375.40 is: 364,773.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,335.40 : 869,811.90 = 243,375.40 : x
  2. Step 2: Convert to fraction form
    580,335.40/869,811.90 = 243,375.40/x
  3. Step 3: Cross multiply
    580,335.40x = 869,811.90 × 243,375.40
  4. Step 4: Simplify right side
    580,335.40x = 211,690,819,087.26
  5. Step 5: Solve for x
    x = 211,690,819,087.26/580,335.40
  6. Step 6: Final answer
    x = 364,773.23

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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.