Home / 1,122,354.40-1,683,531.60-744,440.80

Finding the Fourth Proportional to 1,122,354.40, 1,683,531.60 and 744,440.80

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Solution

The fourth proportional to 1,122,354.40, 1,683,531.60 and 744,440.80 is: 1,116,661.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,122,354.40 : 1,683,531.60 = 744,440.80 : x
  2. Step 2: Convert to fraction form
    1,122,354.40/1,683,531.60 = 744,440.80/x
  3. Step 3: Cross multiply
    1,122,354.40x = 1,683,531.60 × 744,440.80
  4. Step 4: Simplify right side
    1,122,354.40x = 1,253,289,611,129.28
  5. Step 5: Solve for x
    x = 1,253,289,611,129.28/1,122,354.40
  6. Step 6: Final answer
    x = 1,116,661.20

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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.