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Finding the Fourth Proportional to 552,515.58, 762,538.98 and 310,808.34

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Solution

The fourth proportional to 552,515.58, 762,538.98 and 310,808.34 is: 428,953.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,515.58 : 762,538.98 = 310,808.34 : x
  2. Step 2: Convert to fraction form
    552,515.58/762,538.98 = 310,808.34/x
  3. Step 3: Cross multiply
    552,515.58x = 762,538.98 × 310,808.34
  4. Step 4: Simplify right side
    552,515.58x = 237,003,474,559.09
  5. Step 5: Solve for x
    x = 237,003,474,559.09/552,515.58
  6. Step 6: Final answer
    x = 428,953.47

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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.