Home / 1,319,438.73-1,979,162.97-561,171.81

Finding the Fourth Proportional to 1,319,438.73, 1,979,162.97 and 561,171.81

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Solution

The fourth proportional to 1,319,438.73, 1,979,162.97 and 561,171.81 is: 841,759.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,319,438.73 : 1,979,162.97 = 561,171.81 : x
  2. Step 2: Convert to fraction form
    1,319,438.73/1,979,162.97 = 561,171.81/x
  3. Step 3: Cross multiply
    1,319,438.73x = 1,979,162.97 × 561,171.81
  4. Step 4: Simplify right side
    1,319,438.73x = 1,110,650,466,159.88
  5. Step 5: Solve for x
    x = 1,110,650,466,159.88/1,319,438.73
  6. Step 6: Final answer
    x = 841,759.79

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.