Home / 1,270,902.75-1,753,407.27-812,285.79

Finding the Fourth Proportional to 1,270,902.75, 1,753,407.27 and 812,285.79

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Solution

The fourth proportional to 1,270,902.75, 1,753,407.27 and 812,285.79 is: 1,120,674.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,270,902.75 : 1,753,407.27 = 812,285.79 : x
  2. Step 2: Convert to fraction form
    1,270,902.75/1,753,407.27 = 812,285.79/x
  3. Step 3: Cross multiply
    1,270,902.75x = 1,753,407.27 × 812,285.79
  4. Step 4: Simplify right side
    1,270,902.75x = 1,424,267,809,503.69
  5. Step 5: Solve for x
    x = 1,424,267,809,503.69/1,270,902.75
  6. Step 6: Final answer
    x = 1,120,674.11

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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.