Home / 790,703.23-1,091,165.86-428,119.60

Finding the Fourth Proportional to 790,703.23, 1,091,165.86 and 428,119.60

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Solution

The fourth proportional to 790,703.23, 1,091,165.86 and 428,119.60 is: 590,802.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,703.23 : 1,091,165.86 = 428,119.60 : x
  2. Step 2: Convert to fraction form
    790,703.23/1,091,165.86 = 428,119.60/x
  3. Step 3: Cross multiply
    790,703.23x = 1,091,165.86 × 428,119.60
  4. Step 4: Simplify right side
    790,703.23x = 467,149,491,516.86
  5. Step 5: Solve for x
    x = 467,149,491,516.86/790,703.23
  6. Step 6: Final answer
    x = 590,802.56

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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.