Home / 642,244.03-959,459.83-415,759.39

Finding the Fourth Proportional to 642,244.03, 959,459.83 and 415,759.39

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Solution

The fourth proportional to 642,244.03, 959,459.83 and 415,759.39 is: 621,110.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,244.03 : 959,459.83 = 415,759.39 : x
  2. Step 2: Convert to fraction form
    642,244.03/959,459.83 = 415,759.39/x
  3. Step 3: Cross multiply
    642,244.03x = 959,459.83 × 415,759.39
  4. Step 4: Simplify right side
    642,244.03x = 398,904,433,650.30
  5. Step 5: Solve for x
    x = 398,904,433,650.30/642,244.03
  6. Step 6: Final answer
    x = 621,110.38

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.