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Finding the Fourth Proportional to 565,592.39, 780,522.57 and 307,469.84

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Solution

The fourth proportional to 565,592.39, 780,522.57 and 307,469.84 is: 424,311.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,592.39 : 780,522.57 = 307,469.84 : x
  2. Step 2: Convert to fraction form
    565,592.39/780,522.57 = 307,469.84/x
  3. Step 3: Cross multiply
    565,592.39x = 780,522.57 × 307,469.84
  4. Step 4: Simplify right side
    565,592.39x = 239,987,145,811.68
  5. Step 5: Solve for x
    x = 239,987,145,811.68/565,592.39
  6. Step 6: Final answer
    x = 424,311.13

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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.