Home / 790,703.48-1,091,166.21-428,119.85

Finding the Fourth Proportional to 790,703.48, 1,091,166.21 and 428,119.85

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Solution

The fourth proportional to 790,703.48, 1,091,166.21 and 428,119.85 is: 590,802.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,703.48 : 1,091,166.21 = 428,119.85 : x
  2. Step 2: Convert to fraction form
    790,703.48/1,091,166.21 = 428,119.85/x
  3. Step 3: Cross multiply
    790,703.48x = 1,091,166.21 × 428,119.85
  4. Step 4: Simplify right side
    790,703.48x = 467,149,908,694.44
  5. Step 5: Solve for x
    x = 467,149,908,694.44/790,703.48
  6. Step 6: Final answer
    x = 590,802.90

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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.