Home / 323,565.10-482,816.39-289,942.78

Finding the Fourth Proportional to 323,565.10, 482,816.39 and 289,942.78

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Solution

The fourth proportional to 323,565.10, 482,816.39 and 289,942.78 is: 432,645.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,565.10 : 482,816.39 = 289,942.78 : x
  2. Step 2: Convert to fraction form
    323,565.10/482,816.39 = 289,942.78/x
  3. Step 3: Cross multiply
    323,565.10x = 482,816.39 × 289,942.78
  4. Step 4: Simplify right side
    323,565.10x = 139,989,126,346.16
  5. Step 5: Solve for x
    x = 139,989,126,346.16/323,565.10
  6. Step 6: Final answer
    x = 432,645.94

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.