Home / 1,308.49-1,962.70-614.99

Finding the Fourth Proportional to 1,308.49, 1,962.70 and 614.99

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Solution

The fourth proportional to 1,308.49, 1,962.70 and 614.99 is: 922.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,308.49 : 1,962.70 = 614.99 : x
  2. Step 2: Convert to fraction form
    1,308.49/1,962.70 = 614.99/x
  3. Step 3: Cross multiply
    1,308.49x = 1,962.70 × 614.99
  4. Step 4: Simplify right side
    1,308.49x = 1,207,040.87
  5. Step 5: Solve for x
    x = 1,207,040.87/1,308.49
  6. Step 6: Final answer
    x = 922.47

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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.