Home / 879,121.40-1,318,682.10-826,633.40

Finding the Fourth Proportional to 879,121.40, 1,318,682.10 and 826,633.40

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Solution

The fourth proportional to 879,121.40, 1,318,682.10 and 826,633.40 is: 1,239,950.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,121.40 : 1,318,682.10 = 826,633.40 : x
  2. Step 2: Convert to fraction form
    879,121.40/1,318,682.10 = 826,633.40/x
  3. Step 3: Cross multiply
    879,121.40x = 1,318,682.10 × 826,633.40
  4. Step 4: Simplify right side
    879,121.40x = 1,090,066,667,842.14
  5. Step 5: Solve for x
    x = 1,090,066,667,842.14/879,121.40
  6. Step 6: Final answer
    x = 1,239,950.10

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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.