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Finding the Fourth Proportional to 570,855.28, 787,400.49 and 367,163.86

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Solution

The fourth proportional to 570,855.28, 787,400.49 and 367,163.86 is: 506,441.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,855.28 : 787,400.49 = 367,163.86 : x
  2. Step 2: Convert to fraction form
    570,855.28/787,400.49 = 367,163.86/x
  3. Step 3: Cross multiply
    570,855.28x = 787,400.49 × 367,163.86
  4. Step 4: Simplify right side
    570,855.28x = 289,105,003,274.29
  5. Step 5: Solve for x
    x = 289,105,003,274.29/570,855.28
  6. Step 6: Final answer
    x = 506,441.85

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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.