Home / 750,819.21-1,036,131.60-406,655.81

Finding the Fourth Proportional to 750,819.21, 1,036,131.60 and 406,655.81

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Solution

The fourth proportional to 750,819.21, 1,036,131.60 and 406,655.81 is: 561,185.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    750,819.21 : 1,036,131.60 = 406,655.81 : x
  2. Step 2: Convert to fraction form
    750,819.21/1,036,131.60 = 406,655.81/x
  3. Step 3: Cross multiply
    750,819.21x = 1,036,131.60 × 406,655.81
  4. Step 4: Simplify right side
    750,819.21x = 421,348,929,883.94
  5. Step 5: Solve for x
    x = 421,348,929,883.94/750,819.21
  6. Step 6: Final answer
    x = 561,185.60

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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.