Home / 1,288,596.64-1,778,304.04-772,180.32

Finding the Fourth Proportional to 1,288,596.64, 1,778,304.04 and 772,180.32

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Solution

The fourth proportional to 1,288,596.64, 1,778,304.04 and 772,180.32 is: 1,065,633.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288,596.64 : 1,778,304.04 = 772,180.32 : x
  2. Step 2: Convert to fraction form
    1,288,596.64/1,778,304.04 = 772,180.32/x
  3. Step 3: Cross multiply
    1,288,596.64x = 1,778,304.04 × 772,180.32
  4. Step 4: Simplify right side
    1,288,596.64x = 1,373,171,382,664.49
  5. Step 5: Solve for x
    x = 1,373,171,382,664.49/1,288,596.64
  6. Step 6: Final answer
    x = 1,065,633.22

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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.