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Finding the Fourth Proportional to 493,540.41, 740,605.55 and 453,387.09

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Solution

The fourth proportional to 493,540.41, 740,605.55 and 453,387.09 is: 680,351.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,540.41 : 740,605.55 = 453,387.09 : x
  2. Step 2: Convert to fraction form
    493,540.41/740,605.55 = 453,387.09/x
  3. Step 3: Cross multiply
    493,540.41x = 740,605.55 × 453,387.09
  4. Step 4: Simplify right side
    493,540.41x = 335,780,995,152.35
  5. Step 5: Solve for x
    x = 335,780,995,152.35/493,540.41
  6. Step 6: Final answer
    x = 680,351.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.