Home / 1,328.14-1,990.86-597.52

Finding the Fourth Proportional to 1,328.14, 1,990.86 and 597.52

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Solution

The fourth proportional to 1,328.14, 1,990.86 and 597.52 is: 895.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,328.14 : 1,990.86 = 597.52 : x
  2. Step 2: Convert to fraction form
    1,328.14/1,990.86 = 597.52/x
  3. Step 3: Cross multiply
    1,328.14x = 1,990.86 × 597.52
  4. Step 4: Simplify right side
    1,328.14x = 1,189,578.67
  5. Step 5: Solve for x
    x = 1,189,578.67/1,328.14
  6. Step 6: Final answer
    x = 895.67

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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.