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Finding the Fourth Proportional to 552,326.85, 762,203.79 and 310,609.35

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Solution

The fourth proportional to 552,326.85, 762,203.79 and 310,609.35 is: 428,636.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,326.85 : 762,203.79 = 310,609.35 : x
  2. Step 2: Convert to fraction form
    552,326.85/762,203.79 = 310,609.35/x
  3. Step 3: Cross multiply
    552,326.85x = 762,203.79 × 310,609.35
  4. Step 4: Simplify right side
    552,326.85x = 236,747,623,779.44
  5. Step 5: Solve for x
    x = 236,747,623,779.44/552,326.85
  6. Step 6: Final answer
    x = 428,636.82

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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.