Home / 1,916,828.20-2,871,743.10-1,167,999.40

Finding the Fourth Proportional to 1,916,828.20, 2,871,743.10 and 1,167,999.40

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Solution

The fourth proportional to 1,916,828.20, 2,871,743.10 and 1,167,999.40 is: 1,749,866.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,916,828.20 : 2,871,743.10 = 1,167,999.40 : x
  2. Step 2: Convert to fraction form
    1,916,828.20/2,871,743.10 = 1,167,999.40/x
  3. Step 3: Cross multiply
    1,916,828.20x = 2,871,743.10 × 1,167,999.40
  4. Step 4: Simplify right side
    1,916,828.20x = 3,354,194,217,754.14
  5. Step 5: Solve for x
    x = 3,354,194,217,754.14/1,916,828.20
  6. Step 6: Final answer
    x = 1,749,866.90

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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.