Home / 1,293,044.52-1,784,273.70-720,138

Finding the Fourth Proportional to 1,293,044.52, 1,784,273.70 and 720,138

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Solution

The fourth proportional to 1,293,044.52, 1,784,273.70 and 720,138 is: 993,719.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,293,044.52 : 1,784,273.70 = 720,138 : x
  2. Step 2: Convert to fraction form
    1,293,044.52/1,784,273.70 = 720,138/x
  3. Step 3: Cross multiply
    1,293,044.52x = 1,784,273.70 × 720,138
  4. Step 4: Simplify right side
    1,293,044.52x = 1,284,923,293,770.60
  5. Step 5: Solve for x
    x = 1,284,923,293,770.60/1,293,044.52
  6. Step 6: Final answer
    x = 993,719.30

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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.