Home / 400,864.91-553,039.59-228,792.42

Finding the Fourth Proportional to 400,864.91, 553,039.59 and 228,792.42

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Solution

The fourth proportional to 400,864.91, 553,039.59 and 228,792.42 is: 315,645.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,864.91 : 553,039.59 = 228,792.42 : x
  2. Step 2: Convert to fraction form
    400,864.91/553,039.59 = 228,792.42/x
  3. Step 3: Cross multiply
    400,864.91x = 553,039.59 × 228,792.42
  4. Step 4: Simplify right side
    400,864.91x = 126,531,266,151.91
  5. Step 5: Solve for x
    x = 126,531,266,151.91/400,864.91
  6. Step 6: Final answer
    x = 315,645.66

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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.