Home / 1,092,129.80-1,638,194.70-976,656.20

Finding the Fourth Proportional to 1,092,129.80, 1,638,194.70 and 976,656.20

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Solution

The fourth proportional to 1,092,129.80, 1,638,194.70 and 976,656.20 is: 1,464,984.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,092,129.80 : 1,638,194.70 = 976,656.20 : x
  2. Step 2: Convert to fraction form
    1,092,129.80/1,638,194.70 = 976,656.20/x
  3. Step 3: Cross multiply
    1,092,129.80x = 1,638,194.70 × 976,656.20
  4. Step 4: Simplify right side
    1,092,129.80x = 1,599,953,010,562.14
  5. Step 5: Solve for x
    x = 1,599,953,010,562.14/1,092,129.80
  6. Step 6: Final answer
    x = 1,464,984.30

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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.