Home / 1,284,350.92-1,772,380.74-711,389.32

Finding the Fourth Proportional to 1,284,350.92, 1,772,380.74 and 711,389.32

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Solution

The fourth proportional to 1,284,350.92, 1,772,380.74 and 711,389.32 is: 981,704.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,284,350.92 : 1,772,380.74 = 711,389.32 : x
  2. Step 2: Convert to fraction form
    1,284,350.92/1,772,380.74 = 711,389.32/x
  3. Step 3: Cross multiply
    1,284,350.92x = 1,772,380.74 × 711,389.32
  4. Step 4: Simplify right side
    1,284,350.92x = 1,260,852,729,409.70
  5. Step 5: Solve for x
    x = 1,260,852,729,409.70/1,284,350.92
  6. Step 6: Final answer
    x = 981,704.23

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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.