Home / 612,030.44-917,669.78-212,499.56

Finding the Fourth Proportional to 612,030.44, 917,669.78 and 212,499.56

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Solution

The fourth proportional to 612,030.44, 917,669.78 and 212,499.56 is: 318,618.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,030.44 : 917,669.78 = 212,499.56 : x
  2. Step 2: Convert to fraction form
    612,030.44/917,669.78 = 212,499.56/x
  3. Step 3: Cross multiply
    612,030.44x = 917,669.78 × 212,499.56
  4. Step 4: Simplify right side
    612,030.44x = 195,004,424,475.30
  5. Step 5: Solve for x
    x = 195,004,424,475.30/612,030.44
  6. Step 6: Final answer
    x = 318,618.83

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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.