Home / 709,972.96-1,064,765.46-254,479.28

Finding the Fourth Proportional to 709,972.96, 1,064,765.46 and 254,479.28

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Solution

The fourth proportional to 709,972.96, 1,064,765.46 and 254,479.28 is: 381,649.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,972.96 : 1,064,765.46 = 254,479.28 : x
  2. Step 2: Convert to fraction form
    709,972.96/1,064,765.46 = 254,479.28/x
  3. Step 3: Cross multiply
    709,972.96x = 1,064,765.46 × 254,479.28
  4. Step 4: Simplify right side
    709,972.96x = 270,960,747,629.67
  5. Step 5: Solve for x
    x = 270,960,747,629.67/709,972.96
  6. Step 6: Final answer
    x = 381,649.39

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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.