Home / 809,243.10-1,213,864.65-508,749.30

Finding the Fourth Proportional to 809,243.10, 1,213,864.65 and 508,749.30

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Solution

The fourth proportional to 809,243.10, 1,213,864.65 and 508,749.30 is: 763,123.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,243.10 : 1,213,864.65 = 508,749.30 : x
  2. Step 2: Convert to fraction form
    809,243.10/1,213,864.65 = 508,749.30/x
  3. Step 3: Cross multiply
    809,243.10x = 1,213,864.65 × 508,749.30
  4. Step 4: Simplify right side
    809,243.10x = 617,552,790,982.25
  5. Step 5: Solve for x
    x = 617,552,790,982.25/809,243.10
  6. Step 6: Final answer
    x = 763,123.95

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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.