Home / 709,372.49-1,064,028.93-330,162.78

Finding the Fourth Proportional to 709,372.49, 1,064,028.93 and 330,162.78

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Solution

The fourth proportional to 709,372.49, 1,064,028.93 and 330,162.78 is: 495,230.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,372.49 : 1,064,028.93 = 330,162.78 : x
  2. Step 2: Convert to fraction form
    709,372.49/1,064,028.93 = 330,162.78/x
  3. Step 3: Cross multiply
    709,372.49x = 1,064,028.93 × 330,162.78
  4. Step 4: Simplify right side
    709,372.49x = 351,302,752,281.22
  5. Step 5: Solve for x
    x = 351,302,752,281.22/709,372.49
  6. Step 6: Final answer
    x = 495,230.31

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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.