Home / 1,388,585.70-1,915,410.35-917,096.35

Finding the Fourth Proportional to 1,388,585.70, 1,915,410.35 and 917,096.35

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Solution

The fourth proportional to 1,388,585.70, 1,915,410.35 and 917,096.35 is: 1,265,039.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,388,585.70 : 1,915,410.35 = 917,096.35 : x
  2. Step 2: Convert to fraction form
    1,388,585.70/1,915,410.35 = 917,096.35/x
  3. Step 3: Cross multiply
    1,388,585.70x = 1,915,410.35 × 917,096.35
  4. Step 4: Simplify right side
    1,388,585.70x = 1,756,615,835,791.79
  5. Step 5: Solve for x
    x = 1,756,615,835,791.79/1,388,585.70
  6. Step 6: Final answer
    x = 1,265,039.56

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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.