Home / 628,747.44-942,207.48-291,891.12

Finding the Fourth Proportional to 628,747.44, 942,207.48 and 291,891.12

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Solution

The fourth proportional to 628,747.44, 942,207.48 and 291,891.12 is: 437,412.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,747.44 : 942,207.48 = 291,891.12 : x
  2. Step 2: Convert to fraction form
    628,747.44/942,207.48 = 291,891.12/x
  3. Step 3: Cross multiply
    628,747.44x = 942,207.48 × 291,891.12
  4. Step 4: Simplify right side
    628,747.44x = 275,021,996,609.58
  5. Step 5: Solve for x
    x = 275,021,996,609.58/628,747.44
  6. Step 6: Final answer
    x = 437,412.51

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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.