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Finding the Fourth Proportional to 835,334.40, 1,253,001.60 and 274,368.90

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Solution

The fourth proportional to 835,334.40, 1,253,001.60 and 274,368.90 is: 411,553.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    835,334.40 : 1,253,001.60 = 274,368.90 : x
  2. Step 2: Convert to fraction form
    835,334.40/1,253,001.60 = 274,368.90/x
  3. Step 3: Cross multiply
    835,334.40x = 1,253,001.60 × 274,368.90
  4. Step 4: Simplify right side
    835,334.40x = 343,784,670,690.24
  5. Step 5: Solve for x
    x = 343,784,670,690.24/835,334.40
  6. Step 6: Final answer
    x = 411,553.35

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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.