Home / 727,506.60-1,003,959.36-421,760.22

Finding the Fourth Proportional to 727,506.60, 1,003,959.36 and 421,760.22

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Solution

The fourth proportional to 727,506.60, 1,003,959.36 and 421,760.22 is: 582,029.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,506.60 : 1,003,959.36 = 421,760.22 : x
  2. Step 2: Convert to fraction form
    727,506.60/1,003,959.36 = 421,760.22/x
  3. Step 3: Cross multiply
    727,506.60x = 1,003,959.36 × 421,760.22
  4. Step 4: Simplify right side
    727,506.60x = 423,430,120,544.66
  5. Step 5: Solve for x
    x = 423,430,120,544.66/727,506.60
  6. Step 6: Final answer
    x = 582,029.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.