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Finding the Fourth Proportional to 1,019.04, 1,524.78 and 608.40

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Solution

The fourth proportional to 1,019.04, 1,524.78 and 608.40 is: 910.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,019.04 : 1,524.78 = 608.40 : x
  2. Step 2: Convert to fraction form
    1,019.04/1,524.78 = 608.40/x
  3. Step 3: Cross multiply
    1,019.04x = 1,524.78 × 608.40
  4. Step 4: Simplify right side
    1,019.04x = 927,676.15
  5. Step 5: Solve for x
    x = 927,676.15/1,019.04
  6. Step 6: Final answer
    x = 910.34

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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.