Home / 879,145.20-1,318,717.80-873,896.40

Finding the Fourth Proportional to 879,145.20, 1,318,717.80 and 873,896.40

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Solution

The fourth proportional to 879,145.20, 1,318,717.80 and 873,896.40 is: 1,310,844.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,145.20 : 1,318,717.80 = 873,896.40 : x
  2. Step 2: Convert to fraction form
    879,145.20/1,318,717.80 = 873,896.40/x
  3. Step 3: Cross multiply
    879,145.20x = 1,318,717.80 × 873,896.40
  4. Step 4: Simplify right side
    879,145.20x = 1,152,422,738,035.92
  5. Step 5: Solve for x
    x = 1,152,422,738,035.92/879,145.20
  6. Step 6: Final answer
    x = 1,310,844.60

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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.