Home / 1,971,865.86-2,721,174.90-1,066,447.86

Finding the Fourth Proportional to 1,971,865.86, 2,721,174.90 and 1,066,447.86

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Solution

The fourth proportional to 1,971,865.86, 2,721,174.90 and 1,066,447.86 is: 1,471,698.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,971,865.86 : 2,721,174.90 = 1,066,447.86 : x
  2. Step 2: Convert to fraction form
    1,971,865.86/2,721,174.90 = 1,066,447.86/x
  3. Step 3: Cross multiply
    1,971,865.86x = 2,721,174.90 × 1,066,447.86
  4. Step 4: Simplify right side
    1,971,865.86x = 2,901,991,148,790.71
  5. Step 5: Solve for x
    x = 2,901,991,148,790.71/1,971,865.86
  6. Step 6: Final answer
    x = 1,471,698.05

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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.