Home / 931,377.51-1,397,211.26-300,355.11

Finding the Fourth Proportional to 931,377.51, 1,397,211.26 and 300,355.11

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Solution

The fourth proportional to 931,377.51, 1,397,211.26 and 300,355.11 is: 450,579.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    931,377.51 : 1,397,211.26 = 300,355.11 : x
  2. Step 2: Convert to fraction form
    931,377.51/1,397,211.26 = 300,355.11/x
  3. Step 3: Cross multiply
    931,377.51x = 1,397,211.26 × 300,355.11
  4. Step 4: Simplify right side
    931,377.51x = 419,659,540,188.76
  5. Step 5: Solve for x
    x = 419,659,540,188.76/931,377.51
  6. Step 6: Final answer
    x = 450,579.42

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Double scale
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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.