Home / 715,315.82-1,072,807.26-266,248.17

Finding the Fourth Proportional to 715,315.82, 1,072,807.26 and 266,248.17

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Solution

The fourth proportional to 715,315.82, 1,072,807.26 and 266,248.17 is: 399,310.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    715,315.82 : 1,072,807.26 = 266,248.17 : x
  2. Step 2: Convert to fraction form
    715,315.82/1,072,807.26 = 266,248.17/x
  3. Step 3: Cross multiply
    715,315.82x = 1,072,807.26 × 266,248.17
  4. Step 4: Simplify right side
    715,315.82x = 285,632,969,737.71
  5. Step 5: Solve for x
    x = 285,632,969,737.71/715,315.82
  6. Step 6: Final answer
    x = 399,310.29

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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.