Home / 854,619.60-1,280,239.80-749,557.20

Finding the Fourth Proportional to 854,619.60, 1,280,239.80 and 749,557.20

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Solution

The fourth proportional to 854,619.60, 1,280,239.80 and 749,557.20 is: 1,122,853.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    854,619.60 : 1,280,239.80 = 749,557.20 : x
  2. Step 2: Convert to fraction form
    854,619.60/1,280,239.80 = 749,557.20/x
  3. Step 3: Cross multiply
    854,619.60x = 1,280,239.80 × 749,557.20
  4. Step 4: Simplify right side
    854,619.60x = 959,612,959,816.56
  5. Step 5: Solve for x
    x = 959,612,959,816.56/854,619.60
  6. Step 6: Final answer
    x = 1,122,853.91

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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.