Home / 911,439.10-1,365,341.82-551,418.40

Finding the Fourth Proportional to 911,439.10, 1,365,341.82 and 551,418.40

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Solution

The fourth proportional to 911,439.10, 1,365,341.82 and 551,418.40 is: 826,028.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,439.10 : 1,365,341.82 = 551,418.40 : x
  2. Step 2: Convert to fraction form
    911,439.10/1,365,341.82 = 551,418.40/x
  3. Step 3: Cross multiply
    911,439.10x = 1,365,341.82 × 551,418.40
  4. Step 4: Simplify right side
    911,439.10x = 752,874,601,837.49
  5. Step 5: Solve for x
    x = 752,874,601,837.49/911,439.10
  6. Step 6: Final answer
    x = 826,028.42

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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.