Home / 435,992.48-653,982.24-120,442.40

Finding the Fourth Proportional to 435,992.48, 653,982.24 and 120,442.40

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Solution

The fourth proportional to 435,992.48, 653,982.24 and 120,442.40 is: 180,661.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,992.48 : 653,982.24 = 120,442.40 : x
  2. Step 2: Convert to fraction form
    435,992.48/653,982.24 = 120,442.40/x
  3. Step 3: Cross multiply
    435,992.48x = 653,982.24 × 120,442.40
  4. Step 4: Simplify right side
    435,992.48x = 78,767,190,542.98
  5. Step 5: Solve for x
    x = 78,767,190,542.98/435,992.48
  6. Step 6: Final answer
    x = 180,661.81

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1.5x scale

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.