Home / 459,450.96-689,643-326,481.36

Finding the Fourth Proportional to 459,450.96, 689,643 and 326,481.36

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Solution

The fourth proportional to 459,450.96, 689,643 and 326,481.36 is: 490,053.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,450.96 : 689,643 = 326,481.36 : x
  2. Step 2: Convert to fraction form
    459,450.96/689,643 = 326,481.36/x
  3. Step 3: Cross multiply
    459,450.96x = 689,643 × 326,481.36
  4. Step 4: Simplify right side
    459,450.96x = 225,155,584,554.48
  5. Step 5: Solve for x
    x = 225,155,584,554.48/459,450.96
  6. Step 6: Final answer
    x = 490,053.57

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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.