Home / 1,611,386.40-2,414,314.80-768,122.40

Finding the Fourth Proportional to 1,611,386.40, 2,414,314.80 and 768,122.40

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Solution

The fourth proportional to 1,611,386.40, 2,414,314.80 and 768,122.40 is: 1,150,865.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,611,386.40 : 2,414,314.80 = 768,122.40 : x
  2. Step 2: Convert to fraction form
    1,611,386.40/2,414,314.80 = 768,122.40/x
  3. Step 3: Cross multiply
    1,611,386.40x = 2,414,314.80 × 768,122.40
  4. Step 4: Simplify right side
    1,611,386.40x = 1,854,489,278,531.52
  5. Step 5: Solve for x
    x = 1,854,489,278,531.52/1,611,386.40
  6. Step 6: Final answer
    x = 1,150,865.66

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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.