Home / 776,578.08-1,071,379.94-482,089.66

Finding the Fourth Proportional to 776,578.08, 1,071,379.94 and 482,089.66

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Solution

The fourth proportional to 776,578.08, 1,071,379.94 and 482,089.66 is: 665,098.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    776,578.08 : 1,071,379.94 = 482,089.66 : x
  2. Step 2: Convert to fraction form
    776,578.08/1,071,379.94 = 482,089.66/x
  3. Step 3: Cross multiply
    776,578.08x = 1,071,379.94 × 482,089.66
  4. Step 4: Simplify right side
    776,578.08x = 516,501,191,005.42
  5. Step 5: Solve for x
    x = 516,501,191,005.42/776,578.08
  6. Step 6: Final answer
    x = 665,098.85

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Double scale
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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.