Home / 1,318.61-1,977.50-497.27

Finding the Fourth Proportional to 1,318.61, 1,977.50 and 497.27

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Solution

The fourth proportional to 1,318.61, 1,977.50 and 497.27 is: 745.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,318.61 : 1,977.50 = 497.27 : x
  2. Step 2: Convert to fraction form
    1,318.61/1,977.50 = 497.27/x
  3. Step 3: Cross multiply
    1,318.61x = 1,977.50 × 497.27
  4. Step 4: Simplify right side
    1,318.61x = 983,339.05
  5. Step 5: Solve for x
    x = 983,339.05/1,318.61
  6. Step 6: Final answer
    x = 745.74

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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.