Home / 1,293,045.27-1,784,274.73-720,138.75

Finding the Fourth Proportional to 1,293,045.27, 1,784,274.73 and 720,138.75

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Solution

The fourth proportional to 1,293,045.27, 1,784,274.73 and 720,138.75 is: 993,720.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,293,045.27 : 1,784,274.73 = 720,138.75 : x
  2. Step 2: Convert to fraction form
    1,293,045.27/1,784,274.73 = 720,138.75/x
  3. Step 3: Cross multiply
    1,293,045.27x = 1,784,274.73 × 720,138.75
  4. Step 4: Simplify right side
    1,293,045.27x = 1,284,925,373,718.79
  5. Step 5: Solve for x
    x = 1,284,925,373,718.79/1,293,045.27
  6. Step 6: Final answer
    x = 993,720.33

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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.