Home / 831,603.96-1,247,559.80-263,128.16

Finding the Fourth Proportional to 831,603.96, 1,247,559.80 and 263,128.16

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Solution

The fourth proportional to 831,603.96, 1,247,559.80 and 263,128.16 is: 394,740.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,603.96 : 1,247,559.80 = 263,128.16 : x
  2. Step 2: Convert to fraction form
    831,603.96/1,247,559.80 = 263,128.16/x
  3. Step 3: Cross multiply
    831,603.96x = 1,247,559.80 × 263,128.16
  4. Step 4: Simplify right side
    831,603.96x = 328,268,114,663.97
  5. Step 5: Solve for x
    x = 328,268,114,663.97/831,603.96
  6. Step 6: Final answer
    x = 394,740.92

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.