Home / 400,817.86-553,123.06-228,790.37

Finding the Fourth Proportional to 400,817.86, 553,123.06 and 228,790.37

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Solution

The fourth proportional to 400,817.86, 553,123.06 and 228,790.37 is: 315,727.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,817.86 : 553,123.06 = 228,790.37 : x
  2. Step 2: Convert to fraction form
    400,817.86/553,123.06 = 228,790.37/x
  3. Step 3: Cross multiply
    400,817.86x = 553,123.06 × 228,790.37
  4. Step 4: Simplify right side
    400,817.86x = 126,549,229,552.93
  5. Step 5: Solve for x
    x = 126,549,229,552.93/400,817.86
  6. Step 6: Final answer
    x = 315,727.52

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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.