Home / 870,291.86-1,305,142.16-301,540.22

Finding the Fourth Proportional to 870,291.86, 1,305,142.16 and 301,540.22

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Solution

The fourth proportional to 870,291.86, 1,305,142.16 and 301,540.22 is: 452,207.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,291.86 : 1,305,142.16 = 301,540.22 : x
  2. Step 2: Convert to fraction form
    870,291.86/1,305,142.16 = 301,540.22/x
  3. Step 3: Cross multiply
    870,291.86x = 1,305,142.16 × 301,540.22
  4. Step 4: Simplify right side
    870,291.86x = 393,552,850,918.55
  5. Step 5: Solve for x
    x = 393,552,850,918.55/870,291.86
  6. Step 6: Final answer
    x = 452,207.90

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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.