Home / 1,122,100.60-1,683,734.10-491,078.20

Finding the Fourth Proportional to 1,122,100.60, 1,683,734.10 and 491,078.20

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Solution

The fourth proportional to 1,122,100.60, 1,683,734.10 and 491,078.20 is: 736,872.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,122,100.60 : 1,683,734.10 = 491,078.20 : x
  2. Step 2: Convert to fraction form
    1,122,100.60/1,683,734.10 = 491,078.20/x
  3. Step 3: Cross multiply
    1,122,100.60x = 1,683,734.10 × 491,078.20
  4. Step 4: Simplify right side
    1,122,100.60x = 826,845,111,106.62
  5. Step 5: Solve for x
    x = 826,845,111,106.62/1,122,100.60
  6. Step 6: Final answer
    x = 736,872.53

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Double scale
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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.