Home / 890,449.76-1,228,946.64-551,027.36

Finding the Fourth Proportional to 890,449.76, 1,228,946.64 and 551,027.36

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Solution

The fourth proportional to 890,449.76, 1,228,946.64 and 551,027.36 is: 760,495.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,449.76 : 1,228,946.64 = 551,027.36 : x
  2. Step 2: Convert to fraction form
    890,449.76/1,228,946.64 = 551,027.36/x
  3. Step 3: Cross multiply
    890,449.76x = 1,228,946.64 × 551,027.36
  4. Step 4: Simplify right side
    890,449.76x = 677,183,222,620.07
  5. Step 5: Solve for x
    x = 677,183,222,620.07/890,449.76
  6. Step 6: Final answer
    x = 760,495.71

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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.