Home / 984,470.18-1,358,678.41-621,876.56

Finding the Fourth Proportional to 984,470.18, 1,358,678.41 and 621,876.56

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Solution

The fourth proportional to 984,470.18, 1,358,678.41 and 621,876.56 is: 858,258.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    984,470.18 : 1,358,678.41 = 621,876.56 : x
  2. Step 2: Convert to fraction form
    984,470.18/1,358,678.41 = 621,876.56/x
  3. Step 3: Cross multiply
    984,470.18x = 1,358,678.41 × 621,876.56
  4. Step 4: Simplify right side
    984,470.18x = 844,930,247,408.99
  5. Step 5: Solve for x
    x = 844,930,247,408.99/984,470.18
  6. Step 6: Final answer
    x = 858,258.86

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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.