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Finding the Fourth Proportional to 576,982.13, 796,237.77 and 315,342.70

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Solution

The fourth proportional to 576,982.13, 796,237.77 and 315,342.70 is: 435,174.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,982.13 : 796,237.77 = 315,342.70 : x
  2. Step 2: Convert to fraction form
    576,982.13/796,237.77 = 315,342.70/x
  3. Step 3: Cross multiply
    576,982.13x = 796,237.77 × 315,342.70
  4. Step 4: Simplify right side
    576,982.13x = 251,087,766,657.07
  5. Step 5: Solve for x
    x = 251,087,766,657.07/576,982.13
  6. Step 6: Final answer
    x = 435,174.25

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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.