Home / 1,191,050.70-1,786,192.11-392,142.03

Finding the Fourth Proportional to 1,191,050.70, 1,786,192.11 and 392,142.03

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Solution

The fourth proportional to 1,191,050.70, 1,786,192.11 and 392,142.03 is: 588,086.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,191,050.70 : 1,786,192.11 = 392,142.03 : x
  2. Step 2: Convert to fraction form
    1,191,050.70/1,786,192.11 = 392,142.03/x
  3. Step 3: Cross multiply
    1,191,050.70x = 1,786,192.11 × 392,142.03
  4. Step 4: Simplify right side
    1,191,050.70x = 700,440,999,985.38
  5. Step 5: Solve for x
    x = 700,440,999,985.38/1,191,050.70
  6. Step 6: Final answer
    x = 588,086.64

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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.