Home / 1,120,274.25-1,680,412.38-480,162.58

Finding the Fourth Proportional to 1,120,274.25, 1,680,412.38 and 480,162.58

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Solution

The fourth proportional to 1,120,274.25, 1,680,412.38 and 480,162.58 is: 720,244.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,120,274.25 : 1,680,412.38 = 480,162.58 : x
  2. Step 2: Convert to fraction form
    1,120,274.25/1,680,412.38 = 480,162.58/x
  3. Step 3: Cross multiply
    1,120,274.25x = 1,680,412.38 × 480,162.58
  4. Step 4: Simplify right side
    1,120,274.25x = 806,871,149,996.33
  5. Step 5: Solve for x
    x = 806,871,149,996.33/1,120,274.25
  6. Step 6: Final answer
    x = 720,244.31

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Double scale
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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.