Home / 790,608.63-1,091,039.25-428,035.62

Finding the Fourth Proportional to 790,608.63, 1,091,039.25 and 428,035.62

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Solution

The fourth proportional to 790,608.63, 1,091,039.25 and 428,035.62 is: 590,688.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,608.63 : 1,091,039.25 = 428,035.62 : x
  2. Step 2: Convert to fraction form
    790,608.63/1,091,039.25 = 428,035.62/x
  3. Step 3: Cross multiply
    790,608.63x = 1,091,039.25 × 428,035.62
  4. Step 4: Simplify right side
    790,608.63x = 467,003,661,818.09
  5. Step 5: Solve for x
    x = 467,003,661,818.09/790,608.63
  6. Step 6: Final answer
    x = 590,688.80

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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.