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Finding the Fourth Proportional to 546,813.20, 820,219.80 and 491,700.80

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Solution

The fourth proportional to 546,813.20, 820,219.80 and 491,700.80 is: 737,551.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    546,813.20 : 820,219.80 = 491,700.80 : x
  2. Step 2: Convert to fraction form
    546,813.20/820,219.80 = 491,700.80/x
  3. Step 3: Cross multiply
    546,813.20x = 820,219.80 × 491,700.80
  4. Step 4: Simplify right side
    546,813.20x = 403,302,731,835.84
  5. Step 5: Solve for x
    x = 403,302,731,835.84/546,813.20
  6. Step 6: Final answer
    x = 737,551.20

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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.