Home / 812,148.40-1,218,222.60-251,182.90

Finding the Fourth Proportional to 812,148.40, 1,218,222.60 and 251,182.90

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Solution

The fourth proportional to 812,148.40, 1,218,222.60 and 251,182.90 is: 376,774.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,148.40 : 1,218,222.60 = 251,182.90 : x
  2. Step 2: Convert to fraction form
    812,148.40/1,218,222.60 = 251,182.90/x
  3. Step 3: Cross multiply
    812,148.40x = 1,218,222.60 × 251,182.90
  4. Step 4: Simplify right side
    812,148.40x = 305,996,685,513.54
  5. Step 5: Solve for x
    x = 305,996,685,513.54/812,148.40
  6. Step 6: Final answer
    x = 376,774.35

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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.