Home / 809,863.80-1,214,795.70-248,897.40

Finding the Fourth Proportional to 809,863.80, 1,214,795.70 and 248,897.40

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Solution

The fourth proportional to 809,863.80, 1,214,795.70 and 248,897.40 is: 373,346.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,863.80 : 1,214,795.70 = 248,897.40 : x
  2. Step 2: Convert to fraction form
    809,863.80/1,214,795.70 = 248,897.40/x
  3. Step 3: Cross multiply
    809,863.80x = 1,214,795.70 × 248,897.40
  4. Step 4: Simplify right side
    809,863.80x = 302,359,491,261.18
  5. Step 5: Solve for x
    x = 302,359,491,261.18/809,863.80
  6. Step 6: Final answer
    x = 373,346.10

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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.