Home / 820,254.42-1,131,815.28-547,885.44

Finding the Fourth Proportional to 820,254.42, 1,131,815.28 and 547,885.44

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Solution

The fourth proportional to 820,254.42, 1,131,815.28 and 547,885.44 is: 755,991.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,254.42 : 1,131,815.28 = 547,885.44 : x
  2. Step 2: Convert to fraction form
    820,254.42/1,131,815.28 = 547,885.44/x
  3. Step 3: Cross multiply
    820,254.42x = 1,131,815.28 × 547,885.44
  4. Step 4: Simplify right side
    820,254.42x = 620,105,112,681.52
  5. Step 5: Solve for x
    x = 620,105,112,681.52/820,254.42
  6. Step 6: Final answer
    x = 755,991.19

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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.