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Finding the Fourth Proportional to 493,788.56, 740,952.48 and 209,434.88

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Solution

The fourth proportional to 493,788.56, 740,952.48 and 209,434.88 is: 314,266.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,788.56 : 740,952.48 = 209,434.88 : x
  2. Step 2: Convert to fraction form
    493,788.56/740,952.48 = 209,434.88/x
  3. Step 3: Cross multiply
    493,788.56x = 740,952.48 × 209,434.88
  4. Step 4: Simplify right side
    493,788.56x = 155,181,293,734.50
  5. Step 5: Solve for x
    x = 155,181,293,734.50/493,788.56
  6. Step 6: Final answer
    x = 314,266.68

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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.