Home / 720,893.04-1,081,938.60-384,301.68

Finding the Fourth Proportional to 720,893.04, 1,081,938.60 and 384,301.68

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Solution

The fourth proportional to 720,893.04, 1,081,938.60 and 384,301.68 is: 576,771.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,893.04 : 1,081,938.60 = 384,301.68 : x
  2. Step 2: Convert to fraction form
    720,893.04/1,081,938.60 = 384,301.68/x
  3. Step 3: Cross multiply
    720,893.04x = 1,081,938.60 × 384,301.68
  4. Step 4: Simplify right side
    720,893.04x = 415,790,821,636.85
  5. Step 5: Solve for x
    x = 415,790,821,636.85/720,893.04
  6. Step 6: Final answer
    x = 576,771.86

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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.