Home / 729,805.05-1,007,130.60-407,514.96

Finding the Fourth Proportional to 729,805.05, 1,007,130.60 and 407,514.96

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Solution

The fourth proportional to 729,805.05, 1,007,130.60 and 407,514.96 is: 562,370.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,805.05 : 1,007,130.60 = 407,514.96 : x
  2. Step 2: Convert to fraction form
    729,805.05/1,007,130.60 = 407,514.96/x
  3. Step 3: Cross multiply
    729,805.05x = 1,007,130.60 × 407,514.96
  4. Step 4: Simplify right side
    729,805.05x = 410,420,786,173.78
  5. Step 5: Solve for x
    x = 410,420,786,173.78/729,805.05
  6. Step 6: Final answer
    x = 562,370.44

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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.