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Finding the Fourth Proportional to 537,676.74, 741,907.09 and 308,191.80

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Solution

The fourth proportional to 537,676.74, 741,907.09 and 308,191.80 is: 425,254.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    537,676.74 : 741,907.09 = 308,191.80 : x
  2. Step 2: Convert to fraction form
    537,676.74/741,907.09 = 308,191.80/x
  3. Step 3: Cross multiply
    537,676.74x = 741,907.09 × 308,191.80
  4. Step 4: Simplify right side
    537,676.74x = 228,649,681,499.86
  5. Step 5: Solve for x
    x = 228,649,681,499.86/537,676.74
  6. Step 6: Final answer
    x = 425,254.92

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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.