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Finding the Fourth Proportional to 496,645.70, 685,374.10 and 270,293.54

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Solution

The fourth proportional to 496,645.70, 685,374.10 and 270,293.54 is: 373,006.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,645.70 : 685,374.10 = 270,293.54 : x
  2. Step 2: Convert to fraction form
    496,645.70/685,374.10 = 270,293.54/x
  3. Step 3: Cross multiply
    496,645.70x = 685,374.10 × 270,293.54
  4. Step 4: Simplify right side
    496,645.70x = 185,252,191,713.31
  5. Step 5: Solve for x
    x = 185,252,191,713.31/496,645.70
  6. Step 6: Final answer
    x = 373,006.74

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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.