Home / 879,076.80-1,318,615.20-843,647.40

Finding the Fourth Proportional to 879,076.80, 1,318,615.20 and 843,647.40

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Solution

The fourth proportional to 879,076.80, 1,318,615.20 and 843,647.40 is: 1,265,471.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,076.80 : 1,318,615.20 = 843,647.40 : x
  2. Step 2: Convert to fraction form
    879,076.80/1,318,615.20 = 843,647.40/x
  3. Step 3: Cross multiply
    879,076.80x = 1,318,615.20 × 843,647.40
  4. Step 4: Simplify right side
    879,076.80x = 1,112,446,285,080.48
  5. Step 5: Solve for x
    x = 1,112,446,285,080.48/879,076.80
  6. Step 6: Final answer
    x = 1,265,471.10

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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.