Home / 790,674.22-1,091,125.80-428,090.46

Finding the Fourth Proportional to 790,674.22, 1,091,125.80 and 428,090.46

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Solution

The fourth proportional to 790,674.22, 1,091,125.80 and 428,090.46 is: 590,762.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,674.22 : 1,091,125.80 = 428,090.46 : x
  2. Step 2: Convert to fraction form
    790,674.22/1,091,125.80 = 428,090.46/x
  3. Step 3: Cross multiply
    790,674.22x = 1,091,125.80 × 428,090.46
  4. Step 4: Simplify right side
    790,674.22x = 467,100,545,639.87
  5. Step 5: Solve for x
    x = 467,100,545,639.87/790,674.22
  6. Step 6: Final answer
    x = 590,762.33

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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.