Home / 998,393.54-1,377,762.82-545,687.78

Finding the Fourth Proportional to 998,393.54, 1,377,762.82 and 545,687.78

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Solution

The fourth proportional to 998,393.54, 1,377,762.82 and 545,687.78 is: 753,038.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    998,393.54 : 1,377,762.82 = 545,687.78 : x
  2. Step 2: Convert to fraction form
    998,393.54/1,377,762.82 = 545,687.78/x
  3. Step 3: Cross multiply
    998,393.54x = 1,377,762.82 × 545,687.78
  4. Step 4: Simplify right side
    998,393.54x = 751,828,326,359.31
  5. Step 5: Solve for x
    x = 751,828,326,359.31/998,393.54
  6. Step 6: Final answer
    x = 753,038.06

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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.