Home / 707,755.20-1,059,040.80-521,131.20

Finding the Fourth Proportional to 707,755.20, 1,059,040.80 and 521,131.20

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Solution

The fourth proportional to 707,755.20, 1,059,040.80 and 521,131.20 is: 779,788.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,755.20 : 1,059,040.80 = 521,131.20 : x
  2. Step 2: Convert to fraction form
    707,755.20/1,059,040.80 = 521,131.20/x
  3. Step 3: Cross multiply
    707,755.20x = 1,059,040.80 × 521,131.20
  4. Step 4: Simplify right side
    707,755.20x = 551,899,202,952.96
  5. Step 5: Solve for x
    x = 551,899,202,952.96/707,755.20
  6. Step 6: Final answer
    x = 779,788.27

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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.