Home / 1,100,028.60-1,650,042.90-911,071.80

Finding the Fourth Proportional to 1,100,028.60, 1,650,042.90 and 911,071.80

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Solution

The fourth proportional to 1,100,028.60, 1,650,042.90 and 911,071.80 is: 1,366,607.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,100,028.60 : 1,650,042.90 = 911,071.80 : x
  2. Step 2: Convert to fraction form
    1,100,028.60/1,650,042.90 = 911,071.80/x
  3. Step 3: Cross multiply
    1,100,028.60x = 1,650,042.90 × 911,071.80
  4. Step 4: Simplify right side
    1,100,028.60x = 1,503,307,554,980.22
  5. Step 5: Solve for x
    x = 1,503,307,554,980.22/1,100,028.60
  6. Step 6: Final answer
    x = 1,366,607.70

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Double scale
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Similar ratio
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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.