Home / 872,435.07-1,308,885.89-789,154.11

Finding the Fourth Proportional to 872,435.07, 1,308,885.89 and 789,154.11

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Solution

The fourth proportional to 872,435.07, 1,308,885.89 and 789,154.11 is: 1,183,942.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,435.07 : 1,308,885.89 = 789,154.11 : x
  2. Step 2: Convert to fraction form
    872,435.07/1,308,885.89 = 789,154.11/x
  3. Step 3: Cross multiply
    872,435.07x = 1,308,885.89 × 789,154.11
  4. Step 4: Simplify right side
    872,435.07x = 1,032,912,675,668.74
  5. Step 5: Solve for x
    x = 1,032,912,675,668.74/872,435.07
  6. Step 6: Final answer
    x = 1,183,942.18

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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.