Home / 435,128.15-653,169.56-345,745.46

Finding the Fourth Proportional to 435,128.15, 653,169.56 and 345,745.46

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Solution

The fourth proportional to 435,128.15, 653,169.56 and 345,745.46 is: 518,997.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,128.15 : 653,169.56 = 345,745.46 : x
  2. Step 2: Convert to fraction form
    435,128.15/653,169.56 = 345,745.46/x
  3. Step 3: Cross multiply
    435,128.15x = 653,169.56 × 345,745.46
  4. Step 4: Simplify right side
    435,128.15x = 225,830,409,884.39
  5. Step 5: Solve for x
    x = 225,830,409,884.39/435,128.15
  6. Step 6: Final answer
    x = 518,997.47

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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.