Home / 1,308.48-1,962.06-442.52

Finding the Fourth Proportional to 1,308.48, 1,962.06 and 442.52

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Solution

The fourth proportional to 1,308.48, 1,962.06 and 442.52 is: 663.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,308.48 : 1,962.06 = 442.52 : x
  2. Step 2: Convert to fraction form
    1,308.48/1,962.06 = 442.52/x
  3. Step 3: Cross multiply
    1,308.48x = 1,962.06 × 442.52
  4. Step 4: Simplify right side
    1,308.48x = 868,250.79
  5. Step 5: Solve for x
    x = 868,250.79/1,308.48
  6. Step 6: Final answer
    x = 663.56

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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.