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Finding the Fourth Proportional to 1,271,683.02, 1,905,975.09 and 703,041.42

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Solution

The fourth proportional to 1,271,683.02, 1,905,975.09 and 703,041.42 is: 1,053,705.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,271,683.02 : 1,905,975.09 = 703,041.42 : x
  2. Step 2: Convert to fraction form
    1,271,683.02/1,905,975.09 = 703,041.42/x
  3. Step 3: Cross multiply
    1,271,683.02x = 1,905,975.09 × 703,041.42
  4. Step 4: Simplify right side
    1,271,683.02x = 1,339,979,433,758.23
  5. Step 5: Solve for x
    x = 1,339,979,433,758.23/1,271,683.02
  6. Step 6: Final answer
    x = 1,053,705.53

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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.