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Finding the Fourth Proportional to 547,589.30, 820,219.37 and 262,860.12

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Solution

The fourth proportional to 547,589.30, 820,219.37 and 262,860.12 is: 393,731.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,589.30 : 820,219.37 = 262,860.12 : x
  2. Step 2: Convert to fraction form
    547,589.30/820,219.37 = 262,860.12/x
  3. Step 3: Cross multiply
    547,589.30x = 820,219.37 × 262,860.12
  4. Step 4: Simplify right side
    547,589.30x = 215,602,960,710.22
  5. Step 5: Solve for x
    x = 215,602,960,710.22/547,589.30
  6. Step 6: Final answer
    x = 393,731.15

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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.