Home / 804,748.80-1,207,123.20-213,772.80

Finding the Fourth Proportional to 804,748.80, 1,207,123.20 and 213,772.80

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Solution

The fourth proportional to 804,748.80, 1,207,123.20 and 213,772.80 is: 320,659.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,748.80 : 1,207,123.20 = 213,772.80 : x
  2. Step 2: Convert to fraction form
    804,748.80/1,207,123.20 = 213,772.80/x
  3. Step 3: Cross multiply
    804,748.80x = 1,207,123.20 × 213,772.80
  4. Step 4: Simplify right side
    804,748.80x = 258,050,106,408.96
  5. Step 5: Solve for x
    x = 258,050,106,408.96/804,748.80
  6. Step 6: Final answer
    x = 320,659.20

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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.