Home / 789,641.37-1,089,705.08-427,065.23

Finding the Fourth Proportional to 789,641.37, 1,089,705.08 and 427,065.23

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Solution

The fourth proportional to 789,641.37, 1,089,705.08 and 427,065.23 is: 589,350.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,641.37 : 1,089,705.08 = 427,065.23 : x
  2. Step 2: Convert to fraction form
    789,641.37/1,089,705.08 = 427,065.23/x
  3. Step 3: Cross multiply
    789,641.37x = 1,089,705.08 × 427,065.23
  4. Step 4: Simplify right side
    789,641.37x = 465,375,143,038.52
  5. Step 5: Solve for x
    x = 465,375,143,038.52/789,641.37
  6. Step 6: Final answer
    x = 589,350.00

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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.