Home / 906,936.20-1,360,404.30-409,272.20

Finding the Fourth Proportional to 906,936.20, 1,360,404.30 and 409,272.20

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Solution

The fourth proportional to 906,936.20, 1,360,404.30 and 409,272.20 is: 613,908.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    906,936.20 : 1,360,404.30 = 409,272.20 : x
  2. Step 2: Convert to fraction form
    906,936.20/1,360,404.30 = 409,272.20/x
  3. Step 3: Cross multiply
    906,936.20x = 1,360,404.30 × 409,272.20
  4. Step 4: Simplify right side
    906,936.20x = 556,775,660,750.46
  5. Step 5: Solve for x
    x = 556,775,660,750.46/906,936.20
  6. Step 6: Final answer
    x = 613,908.30

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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.