Home / 726,501.88-1,089,741.86-326,860.44

Finding the Fourth Proportional to 726,501.88, 1,089,741.86 and 326,860.44

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Solution

The fourth proportional to 726,501.88, 1,089,741.86 and 326,860.44 is: 490,285.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,501.88 : 1,089,741.86 = 326,860.44 : x
  2. Step 2: Convert to fraction form
    726,501.88/1,089,741.86 = 326,860.44/x
  3. Step 3: Cross multiply
    726,501.88x = 1,089,741.86 × 326,860.44
  4. Step 4: Simplify right side
    726,501.88x = 356,193,498,397.31
  5. Step 5: Solve for x
    x = 356,193,498,397.31/726,501.88
  6. Step 6: Final answer
    x = 490,285.72

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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.