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Finding the Fourth Proportional to 576,794.67, 865,189.26 and 320,506.53

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Solution

The fourth proportional to 576,794.67, 865,189.26 and 320,506.53 is: 480,758.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,794.67 : 865,189.26 = 320,506.53 : x
  2. Step 2: Convert to fraction form
    576,794.67/865,189.26 = 320,506.53/x
  3. Step 3: Cross multiply
    576,794.67x = 865,189.26 × 320,506.53
  4. Step 4: Simplify right side
    576,794.67x = 277,298,807,515.87
  5. Step 5: Solve for x
    x = 277,298,807,515.87/576,794.67
  6. Step 6: Final answer
    x = 480,758.27

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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.