Home / 1,116,061.80-1,674,092.70-780,138.60

Finding the Fourth Proportional to 1,116,061.80, 1,674,092.70 and 780,138.60

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Solution

The fourth proportional to 1,116,061.80, 1,674,092.70 and 780,138.60 is: 1,170,207.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,116,061.80 : 1,674,092.70 = 780,138.60 : x
  2. Step 2: Convert to fraction form
    1,116,061.80/1,674,092.70 = 780,138.60/x
  3. Step 3: Cross multiply
    1,116,061.80x = 1,674,092.70 × 780,138.60
  4. Step 4: Simplify right side
    1,116,061.80x = 1,306,024,335,248.22
  5. Step 5: Solve for x
    x = 1,306,024,335,248.22/1,116,061.80
  6. Step 6: Final answer
    x = 1,170,207.90

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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.