Home / 1,230,009.78-1,697,455.64-713,724.68

Finding the Fourth Proportional to 1,230,009.78, 1,697,455.64 and 713,724.68

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Solution

The fourth proportional to 1,230,009.78, 1,697,455.64 and 713,724.68 is: 984,964.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,230,009.78 : 1,697,455.64 = 713,724.68 : x
  2. Step 2: Convert to fraction form
    1,230,009.78/1,697,455.64 = 713,724.68/x
  3. Step 3: Cross multiply
    1,230,009.78x = 1,697,455.64 × 713,724.68
  4. Step 4: Simplify right side
    1,230,009.78x = 1,211,515,983,473.20
  5. Step 5: Solve for x
    x = 1,211,515,983,473.20/1,230,009.78
  6. Step 6: Final answer
    x = 984,964.51

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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.