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Finding the Fourth Proportional to 496,504.40, 745,064.40 and 260,016.80

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Solution

The fourth proportional to 496,504.40, 745,064.40 and 260,016.80 is: 390,186.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,504.40 : 745,064.40 = 260,016.80 : x
  2. Step 2: Convert to fraction form
    496,504.40/745,064.40 = 260,016.80/x
  3. Step 3: Cross multiply
    496,504.40x = 745,064.40 × 260,016.80
  4. Step 4: Simplify right side
    496,504.40x = 193,729,261,081.92
  5. Step 5: Solve for x
    x = 193,729,261,081.92/496,504.40
  6. Step 6: Final answer
    x = 390,186.39

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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.