Home / 1,264,292.74-1,743,233.21-1,021,825.54

Finding the Fourth Proportional to 1,264,292.74, 1,743,233.21 and 1,021,825.54

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Solution

The fourth proportional to 1,264,292.74, 1,743,233.21 and 1,021,825.54 is: 1,408,914.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,264,292.74 : 1,743,233.21 = 1,021,825.54 : x
  2. Step 2: Convert to fraction form
    1,264,292.74/1,743,233.21 = 1,021,825.54/x
  3. Step 3: Cross multiply
    1,264,292.74x = 1,743,233.21 × 1,021,825.54
  4. Step 4: Simplify right side
    1,264,292.74x = 1,781,280,216,154.18
  5. Step 5: Solve for x
    x = 1,781,280,216,154.18/1,264,292.74
  6. Step 6: Final answer
    x = 1,408,914.38

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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.