Home / 891,003.40-1,336,505.10-358,906.30

Finding the Fourth Proportional to 891,003.40, 1,336,505.10 and 358,906.30

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Solution

The fourth proportional to 891,003.40, 1,336,505.10 and 358,906.30 is: 538,359.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,003.40 : 1,336,505.10 = 358,906.30 : x
  2. Step 2: Convert to fraction form
    891,003.40/1,336,505.10 = 358,906.30/x
  3. Step 3: Cross multiply
    891,003.40x = 1,336,505.10 × 358,906.30
  4. Step 4: Simplify right side
    891,003.40x = 479,680,100,372.13
  5. Step 5: Solve for x
    x = 479,680,100,372.13/891,003.40
  6. Step 6: Final answer
    x = 538,359.45

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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.