Home / 1,322,644.64-1,825,418.43-778,831.02

Finding the Fourth Proportional to 1,322,644.64, 1,825,418.43 and 778,831.02

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Solution

The fourth proportional to 1,322,644.64, 1,825,418.43 and 778,831.02 is: 1,074,886.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,322,644.64 : 1,825,418.43 = 778,831.02 : x
  2. Step 2: Convert to fraction form
    1,322,644.64/1,825,418.43 = 778,831.02/x
  3. Step 3: Cross multiply
    1,322,644.64x = 1,825,418.43 × 778,831.02
  4. Step 4: Simplify right side
    1,322,644.64x = 1,421,692,497,763.70
  5. Step 5: Solve for x
    x = 1,421,692,497,763.70/1,322,644.64
  6. Step 6: Final answer
    x = 1,074,886.22

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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.