Home / 789,562.79-1,089,583.08-445,399.46

Finding the Fourth Proportional to 789,562.79, 1,089,583.08 and 445,399.46

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Solution

The fourth proportional to 789,562.79, 1,089,583.08 and 445,399.46 is: 614,643.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,562.79 : 1,089,583.08 = 445,399.46 : x
  2. Step 2: Convert to fraction form
    789,562.79/1,089,583.08 = 445,399.46/x
  3. Step 3: Cross multiply
    789,562.79x = 1,089,583.08 × 445,399.46
  4. Step 4: Simplify right side
    789,562.79x = 485,299,715,457.14
  5. Step 5: Solve for x
    x = 485,299,715,457.14/789,562.79
  6. Step 6: Final answer
    x = 614,643.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.