Home / 1,228.50-1,841.67-497.61

Finding the Fourth Proportional to 1,228.50, 1,841.67 and 497.61

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Solution

The fourth proportional to 1,228.50, 1,841.67 and 497.61 is: 745.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,228.50 : 1,841.67 = 497.61 : x
  2. Step 2: Convert to fraction form
    1,228.50/1,841.67 = 497.61/x
  3. Step 3: Cross multiply
    1,228.50x = 1,841.67 × 497.61
  4. Step 4: Simplify right side
    1,228.50x = 916,433.41
  5. Step 5: Solve for x
    x = 916,433.41/1,228.50
  6. Step 6: Final answer
    x = 745.98

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1.5x scale

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.