Home / 789,450.57-1,089,447.93-435,842.39

Finding the Fourth Proportional to 789,450.57, 1,089,447.93 and 435,842.39

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Solution

The fourth proportional to 789,450.57, 1,089,447.93 and 435,842.39 is: 601,465.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,450.57 : 1,089,447.93 = 435,842.39 : x
  2. Step 2: Convert to fraction form
    789,450.57/1,089,447.93 = 435,842.39/x
  3. Step 3: Cross multiply
    789,450.57x = 1,089,447.93 × 435,842.39
  4. Step 4: Simplify right side
    789,450.57x = 474,827,589,591.75
  5. Step 5: Solve for x
    x = 474,827,589,591.75/789,450.57
  6. Step 6: Final answer
    x = 601,465.89

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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.