Home / 1,190.18-1,785.25-324.50

Finding the Fourth Proportional to 1,190.18, 1,785.25 and 324.50

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Solution

The fourth proportional to 1,190.18, 1,785.25 and 324.50 is: 486.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,190.18 : 1,785.25 = 324.50 : x
  2. Step 2: Convert to fraction form
    1,190.18/1,785.25 = 324.50/x
  3. Step 3: Cross multiply
    1,190.18x = 1,785.25 × 324.50
  4. Step 4: Simplify right side
    1,190.18x = 579,303.89
  5. Step 5: Solve for x
    x = 579,303.89/1,190.18
  6. Step 6: Final answer
    x = 486.74

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Double scale
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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.