Home / 642,845.89-887,093.42-367,149.54

Finding the Fourth Proportional to 642,845.89, 887,093.42 and 367,149.54

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Solution

The fourth proportional to 642,845.89, 887,093.42 and 367,149.54 is: 506,647.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,845.89 : 887,093.42 = 367,149.54 : x
  2. Step 2: Convert to fraction form
    642,845.89/887,093.42 = 367,149.54/x
  3. Step 3: Cross multiply
    642,845.89x = 887,093.42 × 367,149.54
  4. Step 4: Simplify right side
    642,845.89x = 325,695,937,036.55
  5. Step 5: Solve for x
    x = 325,695,937,036.55/642,845.89
  6. Step 6: Final answer
    x = 506,647.00

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.