Home / 563,942.56-778,257.84-309,310.96

Finding the Fourth Proportional to 563,942.56, 778,257.84 and 309,310.96

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Solution

The fourth proportional to 563,942.56, 778,257.84 and 309,310.96 is: 426,858.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,942.56 : 778,257.84 = 309,310.96 : x
  2. Step 2: Convert to fraction form
    563,942.56/778,257.84 = 309,310.96/x
  3. Step 3: Cross multiply
    563,942.56x = 778,257.84 × 309,310.96
  4. Step 4: Simplify right side
    563,942.56x = 240,723,679,617.93
  5. Step 5: Solve for x
    x = 240,723,679,617.93/563,942.56
  6. Step 6: Final answer
    x = 426,858.51

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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.