Home / 906,164.20-1,359,246.30-315,188.20

Finding the Fourth Proportional to 906,164.20, 1,359,246.30 and 315,188.20

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Solution

The fourth proportional to 906,164.20, 1,359,246.30 and 315,188.20 is: 472,782.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    906,164.20 : 1,359,246.30 = 315,188.20 : x
  2. Step 2: Convert to fraction form
    906,164.20/1,359,246.30 = 315,188.20/x
  3. Step 3: Cross multiply
    906,164.20x = 1,359,246.30 × 315,188.20
  4. Step 4: Simplify right side
    906,164.20x = 428,418,394,653.66
  5. Step 5: Solve for x
    x = 428,418,394,653.66/906,164.20
  6. Step 6: Final answer
    x = 472,782.30

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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.