Home / 1,292,816.57-1,784,099.26-712,052.87

Finding the Fourth Proportional to 1,292,816.57, 1,784,099.26 and 712,052.87

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Solution

The fourth proportional to 1,292,816.57, 1,784,099.26 and 712,052.87 is: 982,639.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,292,816.57 : 1,784,099.26 = 712,052.87 : x
  2. Step 2: Convert to fraction form
    1,292,816.57/1,784,099.26 = 712,052.87/x
  3. Step 3: Cross multiply
    1,292,816.57x = 1,784,099.26 × 712,052.87
  4. Step 4: Simplify right side
    1,292,816.57x = 1,270,372,992,207.50
  5. Step 5: Solve for x
    x = 1,270,372,992,207.50/1,292,816.57
  6. Step 6: Final answer
    x = 982,639.78

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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.