Home / 1,396,004.70-2,094,007.05-917,707.80

Finding the Fourth Proportional to 1,396,004.70, 2,094,007.05 and 917,707.80

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Solution

The fourth proportional to 1,396,004.70, 2,094,007.05 and 917,707.80 is: 1,376,561.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,396,004.70 : 2,094,007.05 = 917,707.80 : x
  2. Step 2: Convert to fraction form
    1,396,004.70/2,094,007.05 = 917,707.80/x
  3. Step 3: Cross multiply
    1,396,004.70x = 2,094,007.05 × 917,707.80
  4. Step 4: Simplify right side
    1,396,004.70x = 1,921,686,603,039.99
  5. Step 5: Solve for x
    x = 1,921,686,603,039.99/1,396,004.70
  6. Step 6: Final answer
    x = 1,376,561.70

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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.