Home / 998,138.66-1,377,458.95-610,946.36

Finding the Fourth Proportional to 998,138.66, 1,377,458.95 and 610,946.36

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Solution

The fourth proportional to 998,138.66, 1,377,458.95 and 610,946.36 is: 843,122.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    998,138.66 : 1,377,458.95 = 610,946.36 : x
  2. Step 2: Convert to fraction form
    998,138.66/1,377,458.95 = 610,946.36/x
  3. Step 3: Cross multiply
    998,138.66x = 1,377,458.95 × 610,946.36
  4. Step 4: Simplify right side
    998,138.66x = 841,553,531,551.92
  5. Step 5: Solve for x
    x = 841,553,531,551.92/998,138.66
  6. Step 6: Final answer
    x = 843,122.87

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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.