Home / 1,345,814.49-1,856,174.38-862,424.62

Finding the Fourth Proportional to 1,345,814.49, 1,856,174.38 and 862,424.62

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Solution

The fourth proportional to 1,345,814.49, 1,856,174.38 and 862,424.62 is: 1,189,473.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,345,814.49 : 1,856,174.38 = 862,424.62 : x
  2. Step 2: Convert to fraction form
    1,345,814.49/1,856,174.38 = 862,424.62/x
  3. Step 3: Cross multiply
    1,345,814.49x = 1,856,174.38 × 862,424.62
  4. Step 4: Simplify right side
    1,345,814.49x = 1,600,810,482,379.88
  5. Step 5: Solve for x
    x = 1,600,810,482,379.88/1,345,814.49
  6. Step 6: Final answer
    x = 1,189,473.36

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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.