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Finding the Fourth Proportional to 1,282,683.93, 1,769,822.92 and 766,360.34

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Solution

The fourth proportional to 1,282,683.93, 1,769,822.92 and 766,360.34 is: 1,057,409.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,282,683.93 : 1,769,822.92 = 766,360.34 : x
  2. Step 2: Convert to fraction form
    1,282,683.93/1,769,822.92 = 766,360.34/x
  3. Step 3: Cross multiply
    1,282,683.93x = 1,769,822.92 × 766,360.34
  4. Step 4: Simplify right side
    1,282,683.93x = 1,356,322,089,145.89
  5. Step 5: Solve for x
    x = 1,356,322,089,145.89/1,282,683.93
  6. Step 6: Final answer
    x = 1,057,409.44

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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.