Home / 818,560.60-1,227,840.90-249,940.60

Finding the Fourth Proportional to 818,560.60, 1,227,840.90 and 249,940.60

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Solution

The fourth proportional to 818,560.60, 1,227,840.90 and 249,940.60 is: 374,910.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,560.60 : 1,227,840.90 = 249,940.60 : x
  2. Step 2: Convert to fraction form
    818,560.60/1,227,840.90 = 249,940.60/x
  3. Step 3: Cross multiply
    818,560.60x = 1,227,840.90 × 249,940.60
  4. Step 4: Simplify right side
    818,560.60x = 306,887,291,250.54
  5. Step 5: Solve for x
    x = 306,887,291,250.54/818,560.60
  6. Step 6: Final answer
    x = 374,910.90

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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.