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Finding the Fourth Proportional to 547,288.80, 820,933.20 and 347,834.40

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Solution

The fourth proportional to 547,288.80, 820,933.20 and 347,834.40 is: 521,751.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,288.80 : 820,933.20 = 347,834.40 : x
  2. Step 2: Convert to fraction form
    547,288.80/820,933.20 = 347,834.40/x
  3. Step 3: Cross multiply
    547,288.80x = 820,933.20 × 347,834.40
  4. Step 4: Simplify right side
    547,288.80x = 285,548,807,062.08
  5. Step 5: Solve for x
    x = 285,548,807,062.08/547,288.80
  6. Step 6: Final answer
    x = 521,751.60

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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.