Home / 726,491.55-1,089,726.30-326,850.06

Finding the Fourth Proportional to 726,491.55, 1,089,726.30 and 326,850.06

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Solution

The fourth proportional to 726,491.55, 1,089,726.30 and 326,850.06 is: 490,270.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,491.55 : 1,089,726.30 = 326,850.06 : x
  2. Step 2: Convert to fraction form
    726,491.55/1,089,726.30 = 326,850.06/x
  3. Step 3: Cross multiply
    726,491.55x = 1,089,726.30 × 326,850.06
  4. Step 4: Simplify right side
    726,491.55x = 356,177,106,538.58
  5. Step 5: Solve for x
    x = 356,177,106,538.58/726,491.55
  6. Step 6: Final answer
    x = 490,270.13

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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.