Home / 744,090.22-1,026,879.60-421,806.58

Finding the Fourth Proportional to 744,090.22, 1,026,879.60 and 421,806.58

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Solution

The fourth proportional to 744,090.22, 1,026,879.60 and 421,806.58 is: 582,112.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    744,090.22 : 1,026,879.60 = 421,806.58 : x
  2. Step 2: Convert to fraction form
    744,090.22/1,026,879.60 = 421,806.58/x
  3. Step 3: Cross multiply
    744,090.22x = 1,026,879.60 × 421,806.58
  4. Step 4: Simplify right side
    744,090.22x = 433,144,572,147.77
  5. Step 5: Solve for x
    x = 433,144,572,147.77/744,090.22
  6. Step 6: Final answer
    x = 582,112.98

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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.