Home / 499,022.21-688,649.94-284,162.33

Finding the Fourth Proportional to 499,022.21, 688,649.94 and 284,162.33

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Solution

The fourth proportional to 499,022.21, 688,649.94 and 284,162.33 is: 392,143.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,022.21 : 688,649.94 = 284,162.33 : x
  2. Step 2: Convert to fraction form
    499,022.21/688,649.94 = 284,162.33/x
  3. Step 3: Cross multiply
    499,022.21x = 688,649.94 × 284,162.33
  4. Step 4: Simplify right side
    499,022.21x = 195,688,368,061.51
  5. Step 5: Solve for x
    x = 195,688,368,061.51/499,022.21
  6. Step 6: Final answer
    x = 392,143.61

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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.