Home / 1,117.41-1,676.24-424.59

Finding the Fourth Proportional to 1,117.41, 1,676.24 and 424.59

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Solution

The fourth proportional to 1,117.41, 1,676.24 and 424.59 is: 636.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,117.41 : 1,676.24 = 424.59 : x
  2. Step 2: Convert to fraction form
    1,117.41/1,676.24 = 424.59/x
  3. Step 3: Cross multiply
    1,117.41x = 1,676.24 × 424.59
  4. Step 4: Simplify right side
    1,117.41x = 711,714.74
  5. Step 5: Solve for x
    x = 711,714.74/1,117.41
  6. Step 6: Final answer
    x = 636.94

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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.