Home / 856,162.80-1,284,256.68-406,929.48

Finding the Fourth Proportional to 856,162.80, 1,284,256.68 and 406,929.48

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Solution

The fourth proportional to 856,162.80, 1,284,256.68 and 406,929.48 is: 610,400.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,162.80 : 1,284,256.68 = 406,929.48 : x
  2. Step 2: Convert to fraction form
    856,162.80/1,284,256.68 = 406,929.48/x
  3. Step 3: Cross multiply
    856,162.80x = 1,284,256.68 × 406,929.48
  4. Step 4: Simplify right side
    856,162.80x = 522,601,902,978.93
  5. Step 5: Solve for x
    x = 522,601,902,978.93/856,162.80
  6. Step 6: Final answer
    x = 610,400.15

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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.