Home / 936,015.20-1,404,022.80-780,495.20

Finding the Fourth Proportional to 936,015.20, 1,404,022.80 and 780,495.20

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Solution

The fourth proportional to 936,015.20, 1,404,022.80 and 780,495.20 is: 1,170,742.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    936,015.20 : 1,404,022.80 = 780,495.20 : x
  2. Step 2: Convert to fraction form
    936,015.20/1,404,022.80 = 780,495.20/x
  3. Step 3: Cross multiply
    936,015.20x = 1,404,022.80 × 780,495.20
  4. Step 4: Simplify right side
    936,015.20x = 1,095,833,056,090.56
  5. Step 5: Solve for x
    x = 1,095,833,056,090.56/936,015.20
  6. Step 6: Final answer
    x = 1,170,742.80

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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.