Home / 1,047.38-1,569.98-519.94

Finding the Fourth Proportional to 1,047.38, 1,569.98 and 519.94

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Solution

The fourth proportional to 1,047.38, 1,569.98 and 519.94 is: 779.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,047.38 : 1,569.98 = 519.94 : x
  2. Step 2: Convert to fraction form
    1,047.38/1,569.98 = 519.94/x
  3. Step 3: Cross multiply
    1,047.38x = 1,569.98 × 519.94
  4. Step 4: Simplify right side
    1,047.38x = 816,296.45
  5. Step 5: Solve for x
    x = 816,296.45/1,047.38
  6. Step 6: Final answer
    x = 779.37

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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.