Home / 1,125,401.82-1,688,268.81-326,579.58

Finding the Fourth Proportional to 1,125,401.82, 1,688,268.81 and 326,579.58

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Solution

The fourth proportional to 1,125,401.82, 1,688,268.81 and 326,579.58 is: 489,917.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,125,401.82 : 1,688,268.81 = 326,579.58 : x
  2. Step 2: Convert to fraction form
    1,125,401.82/1,688,268.81 = 326,579.58/x
  3. Step 3: Cross multiply
    1,125,401.82x = 1,688,268.81 × 326,579.58
  4. Step 4: Simplify right side
    1,125,401.82x = 551,354,118,896.90
  5. Step 5: Solve for x
    x = 551,354,118,896.90/1,125,401.82
  6. Step 6: Final answer
    x = 489,917.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.