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Finding the Fourth Proportional to 516,693.78, 774,110.66 and 486,298.89

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Solution

The fourth proportional to 516,693.78, 774,110.66 and 486,298.89 is: 728,573.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,693.78 : 774,110.66 = 486,298.89 : x
  2. Step 2: Convert to fraction form
    516,693.78/774,110.66 = 486,298.89/x
  3. Step 3: Cross multiply
    516,693.78x = 774,110.66 × 486,298.89
  4. Step 4: Simplify right side
    516,693.78x = 376,449,150,824.61
  5. Step 5: Solve for x
    x = 376,449,150,824.61/516,693.78
  6. Step 6: Final answer
    x = 728,573.03

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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.