Home / 789,607.08-1,089,365.40-517,825.80

Finding the Fourth Proportional to 789,607.08, 1,089,365.40 and 517,825.80

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Solution

The fourth proportional to 789,607.08, 1,089,365.40 and 517,825.80 is: 714,407.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,607.08 : 1,089,365.40 = 517,825.80 : x
  2. Step 2: Convert to fraction form
    789,607.08/1,089,365.40 = 517,825.80/x
  3. Step 3: Cross multiply
    789,607.08x = 1,089,365.40 × 517,825.80
  4. Step 4: Simplify right side
    789,607.08x = 564,101,509,747.32
  5. Step 5: Solve for x
    x = 564,101,509,747.32/789,607.08
  6. Step 6: Final answer
    x = 714,407.87

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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.