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Finding the Fourth Proportional to 552,516.58, 762,540.36 and 310,809.34

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Solution

The fourth proportional to 552,516.58, 762,540.36 and 310,809.34 is: 428,954.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,516.58 : 762,540.36 = 310,809.34 : x
  2. Step 2: Convert to fraction form
    552,516.58/762,540.36 = 310,809.34/x
  3. Step 3: Cross multiply
    552,516.58x = 762,540.36 × 310,809.34
  4. Step 4: Simplify right side
    552,516.58x = 237,004,666,014.96
  5. Step 5: Solve for x
    x = 237,004,666,014.96/552,516.58
  6. Step 6: Final answer
    x = 428,954.85

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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.