Home / 813,511.90-1,220,330.22-273,770.83

Finding the Fourth Proportional to 813,511.90, 1,220,330.22 and 273,770.83

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Solution

The fourth proportional to 813,511.90, 1,220,330.22 and 273,770.83 is: 410,677.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,511.90 : 1,220,330.22 = 273,770.83 : x
  2. Step 2: Convert to fraction form
    813,511.90/1,220,330.22 = 273,770.83/x
  3. Step 3: Cross multiply
    813,511.90x = 1,220,330.22 × 273,770.83
  4. Step 4: Simplify right side
    813,511.90x = 334,090,817,203.48
  5. Step 5: Solve for x
    x = 334,090,817,203.48/813,511.90
  6. Step 6: Final answer
    x = 410,677.23

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Double scale
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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.