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Finding the Fourth Proportional to 565,801.92, 780,791.07 and 311,153.11

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Solution

The fourth proportional to 565,801.92, 780,791.07 and 311,153.11 is: 429,382.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,801.92 : 780,791.07 = 311,153.11 : x
  2. Step 2: Convert to fraction form
    565,801.92/780,791.07 = 311,153.11/x
  3. Step 3: Cross multiply
    565,801.92x = 780,791.07 × 311,153.11
  4. Step 4: Simplify right side
    565,801.92x = 242,945,565,786.77
  5. Step 5: Solve for x
    x = 242,945,565,786.77/565,801.92
  6. Step 6: Final answer
    x = 429,382.72

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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.