Home / 1,042.98-1,439.30-577.23

Finding the Fourth Proportional to 1,042.98, 1,439.30 and 577.23

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Solution

The fourth proportional to 1,042.98, 1,439.30 and 577.23 is: 796.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,042.98 : 1,439.30 = 577.23 : x
  2. Step 2: Convert to fraction form
    1,042.98/1,439.30 = 577.23/x
  3. Step 3: Cross multiply
    1,042.98x = 1,439.30 × 577.23
  4. Step 4: Simplify right side
    1,042.98x = 830,804.25
  5. Step 5: Solve for x
    x = 830,804.25/1,042.98
  6. Step 6: Final answer
    x = 796.57

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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.