Home / 919,902.60-1,379,853.90-680,754.15

Finding the Fourth Proportional to 919,902.60, 1,379,853.90 and 680,754.15

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Solution

The fourth proportional to 919,902.60, 1,379,853.90 and 680,754.15 is: 1,021,131.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,902.60 : 1,379,853.90 = 680,754.15 : x
  2. Step 2: Convert to fraction form
    919,902.60/1,379,853.90 = 680,754.15/x
  3. Step 3: Cross multiply
    919,902.60x = 1,379,853.90 × 680,754.15
  4. Step 4: Simplify right side
    919,902.60x = 939,341,268,818.69
  5. Step 5: Solve for x
    x = 939,341,268,818.69/919,902.60
  6. Step 6: Final answer
    x = 1,021,131.23

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Similar ratio
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1.5x scale

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.