Home / 806,743.60-1,210,115.40-274,865.20

Finding the Fourth Proportional to 806,743.60, 1,210,115.40 and 274,865.20

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Solution

The fourth proportional to 806,743.60, 1,210,115.40 and 274,865.20 is: 412,297.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,743.60 : 1,210,115.40 = 274,865.20 : x
  2. Step 2: Convert to fraction form
    806,743.60/1,210,115.40 = 274,865.20/x
  3. Step 3: Cross multiply
    806,743.60x = 1,210,115.40 × 274,865.20
  4. Step 4: Simplify right side
    806,743.60x = 332,618,611,444.08
  5. Step 5: Solve for x
    x = 332,618,611,444.08/806,743.60
  6. Step 6: Final answer
    x = 412,297.80

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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.