Home / 427,855.04-641,845.92-401,612.48

Finding the Fourth Proportional to 427,855.04, 641,845.92 and 401,612.48

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Solution

The fourth proportional to 427,855.04, 641,845.92 and 401,612.48 is: 602,478.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,855.04 : 641,845.92 = 401,612.48 : x
  2. Step 2: Convert to fraction form
    427,855.04/641,845.92 = 401,612.48/x
  3. Step 3: Cross multiply
    427,855.04x = 641,845.92 × 401,612.48
  4. Step 4: Simplify right side
    427,855.04x = 257,773,331,709.08
  5. Step 5: Solve for x
    x = 257,773,331,709.08/427,855.04
  6. Step 6: Final answer
    x = 602,478.19

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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.