Home / 547,289.23-820,961.52-210,211.71

Finding the Fourth Proportional to 547,289.23, 820,961.52 and 210,211.71

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Solution

The fourth proportional to 547,289.23, 820,961.52 and 210,211.71 is: 315,328.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,289.23 : 820,961.52 = 210,211.71 : x
  2. Step 2: Convert to fraction form
    547,289.23/820,961.52 = 210,211.71/x
  3. Step 3: Cross multiply
    547,289.23x = 820,961.52 × 210,211.71
  4. Step 4: Simplify right side
    547,289.23x = 172,575,724,963.40
  5. Step 5: Solve for x
    x = 172,575,724,963.40/547,289.23
  6. Step 6: Final answer
    x = 315,328.19

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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.