Home / 1,383,866.37-1,909,820.43-772,020.32

Finding the Fourth Proportional to 1,383,866.37, 1,909,820.43 and 772,020.32

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Solution

The fourth proportional to 1,383,866.37, 1,909,820.43 and 772,020.32 is: 1,065,435.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,383,866.37 : 1,909,820.43 = 772,020.32 : x
  2. Step 2: Convert to fraction form
    1,383,866.37/1,909,820.43 = 772,020.32/x
  3. Step 3: Cross multiply
    1,383,866.37x = 1,909,820.43 × 772,020.32
  4. Step 4: Simplify right side
    1,383,866.37x = 1,474,420,169,962.04
  5. Step 5: Solve for x
    x = 1,474,420,169,962.04/1,383,866.37
  6. Step 6: Final answer
    x = 1,065,435.36

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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.