Home / 831,945.88-1,148,095.38-505,165.96

Finding the Fourth Proportional to 831,945.88, 1,148,095.38 and 505,165.96

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Solution

The fourth proportional to 831,945.88, 1,148,095.38 and 505,165.96 is: 697,135.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,945.88 : 1,148,095.38 = 505,165.96 : x
  2. Step 2: Convert to fraction form
    831,945.88/1,148,095.38 = 505,165.96/x
  3. Step 3: Cross multiply
    831,945.88x = 1,148,095.38 × 505,165.96
  4. Step 4: Simplify right side
    831,945.88x = 579,978,704,809.27
  5. Step 5: Solve for x
    x = 579,978,704,809.27/831,945.88
  6. Step 6: Final answer
    x = 697,135.14

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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.