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Finding the Fourth Proportional to 835,345.60, 1,253,018.40 and 274,436.80

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Solution

The fourth proportional to 835,345.60, 1,253,018.40 and 274,436.80 is: 411,655.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    835,345.60 : 1,253,018.40 = 274,436.80 : x
  2. Step 2: Convert to fraction form
    835,345.60/1,253,018.40 = 274,436.80/x
  3. Step 3: Cross multiply
    835,345.60x = 1,253,018.40 × 274,436.80
  4. Step 4: Simplify right side
    835,345.60x = 343,874,360,037.12
  5. Step 5: Solve for x
    x = 343,874,360,037.12/835,345.60
  6. Step 6: Final answer
    x = 411,655.20

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Similar ratio
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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.