Home / 435,619.20-653,428.80-325,027.20

Finding the Fourth Proportional to 435,619.20, 653,428.80 and 325,027.20

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Solution

The fourth proportional to 435,619.20, 653,428.80 and 325,027.20 is: 487,540.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,619.20 : 653,428.80 = 325,027.20 : x
  2. Step 2: Convert to fraction form
    435,619.20/653,428.80 = 325,027.20/x
  3. Step 3: Cross multiply
    435,619.20x = 653,428.80 × 325,027.20
  4. Step 4: Simplify right side
    435,619.20x = 212,382,133,263.36
  5. Step 5: Solve for x
    x = 212,382,133,263.36/435,619.20
  6. Step 6: Final answer
    x = 487,540.80

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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.