Home / 812,289.66-1,218,683.61-363,388.38

Finding the Fourth Proportional to 812,289.66, 1,218,683.61 and 363,388.38

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Solution

The fourth proportional to 812,289.66, 1,218,683.61 and 363,388.38 is: 545,194.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,289.66 : 1,218,683.61 = 363,388.38 : x
  2. Step 2: Convert to fraction form
    812,289.66/1,218,683.61 = 363,388.38/x
  3. Step 3: Cross multiply
    812,289.66x = 1,218,683.61 × 363,388.38
  4. Step 4: Simplify right side
    812,289.66x = 442,855,462,770.45
  5. Step 5: Solve for x
    x = 442,855,462,770.45/812,289.66
  6. Step 6: Final answer
    x = 545,194.02

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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.