Home / 840,034.49-1,260,049.26-208,948.28

Finding the Fourth Proportional to 840,034.49, 1,260,049.26 and 208,948.28

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Solution

The fourth proportional to 840,034.49, 1,260,049.26 and 208,948.28 is: 313,421.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,034.49 : 1,260,049.26 = 208,948.28 : x
  2. Step 2: Convert to fraction form
    840,034.49/1,260,049.26 = 208,948.28/x
  3. Step 3: Cross multiply
    840,034.49x = 1,260,049.26 × 208,948.28
  4. Step 4: Simplify right side
    840,034.49x = 263,285,125,592.27
  5. Step 5: Solve for x
    x = 263,285,125,592.27/840,034.49
  6. Step 6: Final answer
    x = 313,421.80

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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.