Home / 1,190.85-1,784.98-497.89

Finding the Fourth Proportional to 1,190.85, 1,784.98 and 497.89

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Solution

The fourth proportional to 1,190.85, 1,784.98 and 497.89 is: 746.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,190.85 : 1,784.98 = 497.89 : x
  2. Step 2: Convert to fraction form
    1,190.85/1,784.98 = 497.89/x
  3. Step 3: Cross multiply
    1,190.85x = 1,784.98 × 497.89
  4. Step 4: Simplify right side
    1,190.85x = 888,721.20
  5. Step 5: Solve for x
    x = 888,721.20/1,190.85
  6. Step 6: Final answer
    x = 746.29

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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.