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Finding the Fourth Proportional to 507,010.60, 760,515.90 and 307,556.20

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Solution

The fourth proportional to 507,010.60, 760,515.90 and 307,556.20 is: 461,334.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,010.60 : 760,515.90 = 307,556.20 : x
  2. Step 2: Convert to fraction form
    507,010.60/760,515.90 = 307,556.20/x
  3. Step 3: Cross multiply
    507,010.60x = 760,515.90 × 307,556.20
  4. Step 4: Simplify right side
    507,010.60x = 233,901,380,243.58
  5. Step 5: Solve for x
    x = 233,901,380,243.58/507,010.60
  6. Step 6: Final answer
    x = 461,334.30

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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.