Home / 1,293,091.36-1,784,426.16-720,119.68

Finding the Fourth Proportional to 1,293,091.36, 1,784,426.16 and 720,119.68

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Solution

The fourth proportional to 1,293,091.36, 1,784,426.16 and 720,119.68 is: 993,742.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,293,091.36 : 1,784,426.16 = 720,119.68 : x
  2. Step 2: Convert to fraction form
    1,293,091.36/1,784,426.16 = 720,119.68/x
  3. Step 3: Cross multiply
    1,293,091.36x = 1,784,426.16 × 720,119.68
  4. Step 4: Simplify right side
    1,293,091.36x = 1,285,000,395,322.83
  5. Step 5: Solve for x
    x = 1,285,000,395,322.83/1,293,091.36
  6. Step 6: Final answer
    x = 993,742.93

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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.