Home / 725,064.30-1,087,268.40-325,499.40

Finding the Fourth Proportional to 725,064.30, 1,087,268.40 and 325,499.40

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Solution

The fourth proportional to 725,064.30, 1,087,268.40 and 325,499.40 is: 488,101.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,064.30 : 1,087,268.40 = 325,499.40 : x
  2. Step 2: Convert to fraction form
    725,064.30/1,087,268.40 = 325,499.40/x
  3. Step 3: Cross multiply
    725,064.30x = 1,087,268.40 × 325,499.40
  4. Step 4: Simplify right side
    725,064.30x = 353,905,211,838.96
  5. Step 5: Solve for x
    x = 353,905,211,838.96/725,064.30
  6. Step 6: Final answer
    x = 488,101.83

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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.