Home / 1,238,288.64-1,708,856.40-722,028.48

Finding the Fourth Proportional to 1,238,288.64, 1,708,856.40 and 722,028.48

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Solution

The fourth proportional to 1,238,288.64, 1,708,856.40 and 722,028.48 is: 996,409.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,238,288.64 : 1,708,856.40 = 722,028.48 : x
  2. Step 2: Convert to fraction form
    1,238,288.64/1,708,856.40 = 722,028.48/x
  3. Step 3: Cross multiply
    1,238,288.64x = 1,708,856.40 × 722,028.48
  4. Step 4: Simplify right side
    1,238,288.64x = 1,233,842,989,030.27
  5. Step 5: Solve for x
    x = 1,233,842,989,030.27/1,238,288.64
  6. Step 6: Final answer
    x = 996,409.84

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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.