Home / 400,685.60-552,961.01-228,631.57

Finding the Fourth Proportional to 400,685.60, 552,961.01 and 228,631.57

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Solution

The fourth proportional to 400,685.60, 552,961.01 and 228,631.57 is: 315,520.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,685.60 : 552,961.01 = 228,631.57 : x
  2. Step 2: Convert to fraction form
    400,685.60/552,961.01 = 228,631.57/x
  3. Step 3: Cross multiply
    400,685.60x = 552,961.01 × 228,631.57
  4. Step 4: Simplify right side
    400,685.60x = 126,424,343,054.26
  5. Step 5: Solve for x
    x = 126,424,343,054.26/400,685.60
  6. Step 6: Final answer
    x = 315,520.05

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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.