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Finding the Fourth Proportional to 547,237.60, 820,856.40 and 173,260.60

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Solution

The fourth proportional to 547,237.60, 820,856.40 and 173,260.60 is: 259,890.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,237.60 : 820,856.40 = 173,260.60 : x
  2. Step 2: Convert to fraction form
    547,237.60/820,856.40 = 173,260.60/x
  3. Step 3: Cross multiply
    547,237.60x = 820,856.40 × 173,260.60
  4. Step 4: Simplify right side
    547,237.60x = 142,222,072,377.84
  5. Step 5: Solve for x
    x = 142,222,072,377.84/547,237.60
  6. Step 6: Final answer
    x = 259,890.90

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1.5x scale

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.