Home / 1,397,678.14-1,928,662.90-817,037.38

Finding the Fourth Proportional to 1,397,678.14, 1,928,662.90 and 817,037.38

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Solution

The fourth proportional to 1,397,678.14, 1,928,662.90 and 817,037.38 is: 1,127,433.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,397,678.14 : 1,928,662.90 = 817,037.38 : x
  2. Step 2: Convert to fraction form
    1,397,678.14/1,928,662.90 = 817,037.38/x
  3. Step 3: Cross multiply
    1,397,678.14x = 1,928,662.90 × 817,037.38
  4. Step 4: Simplify right side
    1,397,678.14x = 1,575,789,687,683.27
  5. Step 5: Solve for x
    x = 1,575,789,687,683.27/1,397,678.14
  6. Step 6: Final answer
    x = 1,127,433.88

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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.