Home / 999,146.72-1,378,830.24-551,611.37

Finding the Fourth Proportional to 999,146.72, 1,378,830.24 and 551,611.37

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Solution

The fourth proportional to 999,146.72, 1,378,830.24 and 551,611.37 is: 761,227.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    999,146.72 : 1,378,830.24 = 551,611.37 : x
  2. Step 2: Convert to fraction form
    999,146.72/1,378,830.24 = 551,611.37/x
  3. Step 3: Cross multiply
    999,146.72x = 1,378,830.24 × 551,611.37
  4. Step 4: Simplify right side
    999,146.72x = 760,578,430,789.68
  5. Step 5: Solve for x
    x = 760,578,430,789.68/999,146.72
  6. Step 6: Final answer
    x = 761,227.98

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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.