Home / 743,770.78-1,026,398.82-404,239.03

Finding the Fourth Proportional to 743,770.78, 1,026,398.82 and 404,239.03

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Solution

The fourth proportional to 743,770.78, 1,026,398.82 and 404,239.03 is: 557,847.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,770.78 : 1,026,398.82 = 404,239.03 : x
  2. Step 2: Convert to fraction form
    743,770.78/1,026,398.82 = 404,239.03/x
  3. Step 3: Cross multiply
    743,770.78x = 1,026,398.82 × 404,239.03
  4. Step 4: Simplify right side
    743,770.78x = 414,910,463,389.95
  5. Step 5: Solve for x
    x = 414,910,463,389.95/743,770.78
  6. Step 6: Final answer
    x = 557,847.22

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1.5x scale

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.