Home / 812,106.61-1,217,474.96-511,925.67

Finding the Fourth Proportional to 812,106.61, 1,217,474.96 and 511,925.67

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Solution

The fourth proportional to 812,106.61, 1,217,474.96 and 511,925.67 is: 767,456.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,106.61 : 1,217,474.96 = 511,925.67 : x
  2. Step 2: Convert to fraction form
    812,106.61/1,217,474.96 = 511,925.67/x
  3. Step 3: Cross multiply
    812,106.61x = 1,217,474.96 × 511,925.67
  4. Step 4: Simplify right side
    812,106.61x = 623,256,682,046.60
  5. Step 5: Solve for x
    x = 623,256,682,046.60/812,106.61
  6. Step 6: Final answer
    x = 767,456.73

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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.