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Finding the Fourth Proportional to 507,575.38, 700,453.93 and 303,634.90

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Solution

The fourth proportional to 507,575.38, 700,453.93 and 303,634.90 is: 419,016.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,575.38 : 700,453.93 = 303,634.90 : x
  2. Step 2: Convert to fraction form
    507,575.38/700,453.93 = 303,634.90/x
  3. Step 3: Cross multiply
    507,575.38x = 700,453.93 × 303,634.90
  4. Step 4: Simplify right side
    507,575.38x = 212,682,258,990.16
  5. Step 5: Solve for x
    x = 212,682,258,990.16/507,575.38
  6. Step 6: Final answer
    x = 419,016.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.