Home / 1,291,882.38-1,783,114.20-1,000,918.50

Finding the Fourth Proportional to 1,291,882.38, 1,783,114.20 and 1,000,918.50

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Solution

The fourth proportional to 1,291,882.38, 1,783,114.20 and 1,000,918.50 is: 1,381,512.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,291,882.38 : 1,783,114.20 = 1,000,918.50 : x
  2. Step 2: Convert to fraction form
    1,291,882.38/1,783,114.20 = 1,000,918.50/x
  3. Step 3: Cross multiply
    1,291,882.38x = 1,783,114.20 × 1,000,918.50
  4. Step 4: Simplify right side
    1,291,882.38x = 1,784,751,990,392.70
  5. Step 5: Solve for x
    x = 1,784,751,990,392.70/1,291,882.38
  6. Step 6: Final answer
    x = 1,381,512.76

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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.