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Finding the Fourth Proportional to 547,145.60, 820,329.60 and 247,769.60

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Solution

The fourth proportional to 547,145.60, 820,329.60 and 247,769.60 is: 371,478.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,145.60 : 820,329.60 = 247,769.60 : x
  2. Step 2: Convert to fraction form
    547,145.60/820,329.60 = 247,769.60/x
  3. Step 3: Cross multiply
    547,145.60x = 820,329.60 × 247,769.60
  4. Step 4: Simplify right side
    547,145.60x = 203,252,736,860.16
  5. Step 5: Solve for x
    x = 203,252,736,860.16/547,145.60
  6. Step 6: Final answer
    x = 371,478.34

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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.