Home / 943,579.89-1,302,131.30-513,867.20

Finding the Fourth Proportional to 943,579.89, 1,302,131.30 and 513,867.20

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Solution

The fourth proportional to 943,579.89, 1,302,131.30 and 513,867.20 is: 709,131.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    943,579.89 : 1,302,131.30 = 513,867.20 : x
  2. Step 2: Convert to fraction form
    943,579.89/1,302,131.30 = 513,867.20/x
  3. Step 3: Cross multiply
    943,579.89x = 1,302,131.30 × 513,867.20
  4. Step 4: Simplify right side
    943,579.89x = 669,122,556,083.37
  5. Step 5: Solve for x
    x = 669,122,556,083.37/943,579.89
  6. Step 6: Final answer
    x = 709,131.85

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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.