Home / 836,203.80-1,254,305.70-303,742.20

Finding the Fourth Proportional to 836,203.80, 1,254,305.70 and 303,742.20

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Solution

The fourth proportional to 836,203.80, 1,254,305.70 and 303,742.20 is: 455,613.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    836,203.80 : 1,254,305.70 = 303,742.20 : x
  2. Step 2: Convert to fraction form
    836,203.80/1,254,305.70 = 303,742.20/x
  3. Step 3: Cross multiply
    836,203.80x = 1,254,305.70 × 303,742.20
  4. Step 4: Simplify right side
    836,203.80x = 380,985,572,790.54
  5. Step 5: Solve for x
    x = 380,985,572,790.54/836,203.80
  6. Step 6: Final answer
    x = 455,613.30

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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.