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Finding the Fourth Proportional to 1,036.01, 1,553.04 and 386.25

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Solution

The fourth proportional to 1,036.01, 1,553.04 and 386.25 is: 579.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,036.01 : 1,553.04 = 386.25 : x
  2. Step 2: Convert to fraction form
    1,036.01/1,553.04 = 386.25/x
  3. Step 3: Cross multiply
    1,036.01x = 1,553.04 × 386.25
  4. Step 4: Simplify right side
    1,036.01x = 599,861.70
  5. Step 5: Solve for x
    x = 599,861.70/1,036.01
  6. Step 6: Final answer
    x = 579.01

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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.