Home / 1,120,664.40-1,679,454.72-480,201.48

Finding the Fourth Proportional to 1,120,664.40, 1,679,454.72 and 480,201.48

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Solution

The fourth proportional to 1,120,664.40, 1,679,454.72 and 480,201.48 is: 719,641.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,120,664.40 : 1,679,454.72 = 480,201.48 : x
  2. Step 2: Convert to fraction form
    1,120,664.40/1,679,454.72 = 480,201.48/x
  3. Step 3: Cross multiply
    1,120,664.40x = 1,679,454.72 × 480,201.48
  4. Step 4: Simplify right side
    1,120,664.40x = 806,476,642,136.99
  5. Step 5: Solve for x
    x = 806,476,642,136.99/1,120,664.40
  6. Step 6: Final answer
    x = 719,641.53

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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.