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Finding the Fourth Proportional to 577,790.16, 797,605.82 and 345,299.15

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Solution

The fourth proportional to 577,790.16, 797,605.82 and 345,299.15 is: 476,665.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,790.16 : 797,605.82 = 345,299.15 : x
  2. Step 2: Convert to fraction form
    577,790.16/797,605.82 = 345,299.15/x
  3. Step 3: Cross multiply
    577,790.16x = 797,605.82 × 345,299.15
  4. Step 4: Simplify right side
    577,790.16x = 275,412,605,966.53
  5. Step 5: Solve for x
    x = 275,412,605,966.53/577,790.16
  6. Step 6: Final answer
    x = 476,665.45

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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.