Home / 1,308.05-1,962.02-442.36

Finding the Fourth Proportional to 1,308.05, 1,962.02 and 442.36

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Solution

The fourth proportional to 1,308.05, 1,962.02 and 442.36 is: 663.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,308.05 : 1,962.02 = 442.36 : x
  2. Step 2: Convert to fraction form
    1,308.05/1,962.02 = 442.36/x
  3. Step 3: Cross multiply
    1,308.05x = 1,962.02 × 442.36
  4. Step 4: Simplify right side
    1,308.05x = 867,922.73
  5. Step 5: Solve for x
    x = 867,922.73/1,308.05
  6. Step 6: Final answer
    x = 663.52

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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.