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Finding the Fourth Proportional to 565,801.92, 780,791.07 and 311,153.10

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Solution

The fourth proportional to 565,801.92, 780,791.07 and 311,153.10 is: 429,382.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,801.92 : 780,791.07 = 311,153.10 : x
  2. Step 2: Convert to fraction form
    565,801.92/780,791.07 = 311,153.10/x
  3. Step 3: Cross multiply
    565,801.92x = 780,791.07 × 311,153.10
  4. Step 4: Simplify right side
    565,801.92x = 242,945,561,882.82
  5. Step 5: Solve for x
    x = 242,945,561,882.82/565,801.92
  6. Step 6: Final answer
    x = 429,382.71

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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.