Home / 812,243-1,120,739.82-525,723.32

Finding the Fourth Proportional to 812,243, 1,120,739.82 and 525,723.32

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Solution

The fourth proportional to 812,243, 1,120,739.82 and 525,723.32 is: 725,397.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,243 : 1,120,739.82 = 525,723.32 : x
  2. Step 2: Convert to fraction form
    812,243/1,120,739.82 = 525,723.32/x
  3. Step 3: Cross multiply
    812,243x = 1,120,739.82 × 525,723.32
  4. Step 4: Simplify right side
    812,243x = 589,199,059,026.60
  5. Step 5: Solve for x
    x = 589,199,059,026.60/812,243
  6. Step 6: Final answer
    x = 725,397.52

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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.