Home / 1,293,197.76-1,784,568.96-720,208.32

Finding the Fourth Proportional to 1,293,197.76, 1,784,568.96 and 720,208.32

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Solution

The fourth proportional to 1,293,197.76, 1,784,568.96 and 720,208.32 is: 993,863.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,293,197.76 : 1,784,568.96 = 720,208.32 : x
  2. Step 2: Convert to fraction form
    1,293,197.76/1,784,568.96 = 720,208.32/x
  3. Step 3: Cross multiply
    1,293,197.76x = 1,784,568.96 × 720,208.32
  4. Step 4: Simplify right side
    1,293,197.76x = 1,285,261,412,605.75
  5. Step 5: Solve for x
    x = 1,285,261,412,605.75/1,293,197.76
  6. Step 6: Final answer
    x = 993,863.01

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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.