Home / 721,525.16-1,081,105.68-384,207.68

Finding the Fourth Proportional to 721,525.16, 1,081,105.68 and 384,207.68

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Solution

The fourth proportional to 721,525.16, 1,081,105.68 and 384,207.68 is: 575,682.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,525.16 : 1,081,105.68 = 384,207.68 : x
  2. Step 2: Convert to fraction form
    721,525.16/1,081,105.68 = 384,207.68/x
  3. Step 3: Cross multiply
    721,525.16x = 1,081,105.68 × 384,207.68
  4. Step 4: Simplify right side
    721,525.16x = 415,369,105,147.62
  5. Step 5: Solve for x
    x = 415,369,105,147.62/721,525.16
  6. Step 6: Final answer
    x = 575,682.08

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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.