Home / 789,607.58-1,089,655.29-427,031.81

Finding the Fourth Proportional to 789,607.58, 1,089,655.29 and 427,031.81

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Solution

The fourth proportional to 789,607.58, 1,089,655.29 and 427,031.81 is: 589,302.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,607.58 : 1,089,655.29 = 427,031.81 : x
  2. Step 2: Convert to fraction form
    789,607.58/1,089,655.29 = 427,031.81/x
  3. Step 3: Cross multiply
    789,607.58x = 1,089,655.29 × 427,031.81
  4. Step 4: Simplify right side
    789,607.58x = 465,317,470,764.78
  5. Step 5: Solve for x
    x = 465,317,470,764.78/789,607.58
  6. Step 6: Final answer
    x = 589,302.18

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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.