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Finding the Fourth Proportional to 552,684.86, 762,703.63 and 310,967.72

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Solution

The fourth proportional to 552,684.86, 762,703.63 and 310,967.72 is: 429,134.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,684.86 : 762,703.63 = 310,967.72 : x
  2. Step 2: Convert to fraction form
    552,684.86/762,703.63 = 310,967.72/x
  3. Step 3: Cross multiply
    552,684.86x = 762,703.63 × 310,967.72
  4. Step 4: Simplify right side
    552,684.86x = 237,176,204,265.89
  5. Step 5: Solve for x
    x = 237,176,204,265.89/552,684.86
  6. Step 6: Final answer
    x = 429,134.62

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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.