Home / 838,400.76-1,257,974.89-305,797.28

Finding the Fourth Proportional to 838,400.76, 1,257,974.89 and 305,797.28

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Solution

The fourth proportional to 838,400.76, 1,257,974.89 and 305,797.28 is: 458,832.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,400.76 : 1,257,974.89 = 305,797.28 : x
  2. Step 2: Convert to fraction form
    838,400.76/1,257,974.89 = 305,797.28/x
  3. Step 3: Cross multiply
    838,400.76x = 1,257,974.89 × 305,797.28
  4. Step 4: Simplify right side
    838,400.76x = 384,685,292,615.93
  5. Step 5: Solve for x
    x = 384,685,292,615.93/838,400.76
  6. Step 6: Final answer
    x = 458,832.23

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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.