Home / 725,944.86-1,089,138.78-371,208.06

Finding the Fourth Proportional to 725,944.86, 1,089,138.78 and 371,208.06

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Solution

The fourth proportional to 725,944.86, 1,089,138.78 and 371,208.06 is: 556,925.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,944.86 : 1,089,138.78 = 371,208.06 : x
  2. Step 2: Convert to fraction form
    725,944.86/1,089,138.78 = 371,208.06/x
  3. Step 3: Cross multiply
    725,944.86x = 1,089,138.78 × 371,208.06
  4. Step 4: Simplify right side
    725,944.86x = 404,297,093,594.57
  5. Step 5: Solve for x
    x = 404,297,093,594.57/725,944.86
  6. Step 6: Final answer
    x = 556,925.35

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1.5x scale

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.