Home / 1,044.66-1,566.57-428.67

Finding the Fourth Proportional to 1,044.66, 1,566.57 and 428.67

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Solution

The fourth proportional to 1,044.66, 1,566.57 and 428.67 is: 642.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,044.66 : 1,566.57 = 428.67 : x
  2. Step 2: Convert to fraction form
    1,044.66/1,566.57 = 428.67/x
  3. Step 3: Cross multiply
    1,044.66x = 1,566.57 × 428.67
  4. Step 4: Simplify right side
    1,044.66x = 671,541.56
  5. Step 5: Solve for x
    x = 671,541.56/1,044.66
  6. Step 6: Final answer
    x = 642.83

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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.