Home / 820,253.42-1,131,813.90-547,884.44

Finding the Fourth Proportional to 820,253.42, 1,131,813.90 and 547,884.44

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Solution

The fourth proportional to 820,253.42, 1,131,813.90 and 547,884.44 is: 755,989.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,253.42 : 1,131,813.90 = 547,884.44 : x
  2. Step 2: Convert to fraction form
    820,253.42/1,131,813.90 = 547,884.44/x
  3. Step 3: Cross multiply
    820,253.42x = 1,131,813.90 × 547,884.44
  4. Step 4: Simplify right side
    820,253.42x = 620,103,219,126.65
  5. Step 5: Solve for x
    x = 620,103,219,126.65/820,253.42
  6. Step 6: Final answer
    x = 755,989.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.