Home / 1,293,398.37-1,784,944.82-720,438.79

Finding the Fourth Proportional to 1,293,398.37, 1,784,944.82 and 720,438.79

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Solution

The fourth proportional to 1,293,398.37, 1,784,944.82 and 720,438.79 is: 994,236.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,293,398.37 : 1,784,944.82 = 720,438.79 : x
  2. Step 2: Convert to fraction form
    1,293,398.37/1,784,944.82 = 720,438.79/x
  3. Step 3: Cross multiply
    1,293,398.37x = 1,784,944.82 × 720,438.79
  4. Step 4: Simplify right side
    1,293,398.37x = 1,285,943,486,337.57
  5. Step 5: Solve for x
    x = 1,285,943,486,337.57/1,293,398.37
  6. Step 6: Final answer
    x = 994,236.20

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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.