Home / 726,155.70-1,089,233.55-637,509.30

Finding the Fourth Proportional to 726,155.70, 1,089,233.55 and 637,509.30

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Solution

The fourth proportional to 726,155.70, 1,089,233.55 and 637,509.30 is: 956,263.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,155.70 : 1,089,233.55 = 637,509.30 : x
  2. Step 2: Convert to fraction form
    726,155.70/1,089,233.55 = 637,509.30/x
  3. Step 3: Cross multiply
    726,155.70x = 1,089,233.55 × 637,509.30
  4. Step 4: Simplify right side
    726,155.70x = 694,396,517,997.02
  5. Step 5: Solve for x
    x = 694,396,517,997.02/726,155.70
  6. Step 6: Final answer
    x = 956,263.95

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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.