Home / 435,788.40-653,720.27-120,245.31

Finding the Fourth Proportional to 435,788.40, 653,720.27 and 120,245.31

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Solution

The fourth proportional to 435,788.40, 653,720.27 and 120,245.31 is: 180,378.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,788.40 : 653,720.27 = 120,245.31 : x
  2. Step 2: Convert to fraction form
    435,788.40/653,720.27 = 120,245.31/x
  3. Step 3: Cross multiply
    435,788.40x = 653,720.27 × 120,245.31
  4. Step 4: Simplify right side
    435,788.40x = 78,606,796,594.59
  5. Step 5: Solve for x
    x = 78,606,796,594.59/435,788.40
  6. Step 6: Final answer
    x = 180,378.36

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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.