Home / 891,371.91-1,336,926.34-260,116.23

Finding the Fourth Proportional to 891,371.91, 1,336,926.34 and 260,116.23

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Solution

The fourth proportional to 891,371.91, 1,336,926.34 and 260,116.23 is: 390,135.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,371.91 : 1,336,926.34 = 260,116.23 : x
  2. Step 2: Convert to fraction form
    891,371.91/1,336,926.34 = 260,116.23/x
  3. Step 3: Cross multiply
    891,371.91x = 1,336,926.34 × 260,116.23
  4. Step 4: Simplify right side
    891,371.91x = 347,756,239,348.50
  5. Step 5: Solve for x
    x = 347,756,239,348.50/891,371.91
  6. Step 6: Final answer
    x = 390,135.96

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Half scale
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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.