Home / 1,280,424.11-1,922,003.47-551,308.51

Finding the Fourth Proportional to 1,280,424.11, 1,922,003.47 and 551,308.51

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Solution

The fourth proportional to 1,280,424.11, 1,922,003.47 and 551,308.51 is: 827,551.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,424.11 : 1,922,003.47 = 551,308.51 : x
  2. Step 2: Convert to fraction form
    1,280,424.11/1,922,003.47 = 551,308.51/x
  3. Step 3: Cross multiply
    1,280,424.11x = 1,922,003.47 × 551,308.51
  4. Step 4: Simplify right side
    1,280,424.11x = 1,059,616,865,144.66
  5. Step 5: Solve for x
    x = 1,059,616,865,144.66/1,280,424.11
  6. Step 6: Final answer
    x = 827,551.48

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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.