Home / 1,319,408.16-1,820,786.79-715,796.16

Finding the Fourth Proportional to 1,319,408.16, 1,820,786.79 and 715,796.16

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Solution

The fourth proportional to 1,319,408.16, 1,820,786.79 and 715,796.16 is: 987,800.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,319,408.16 : 1,820,786.79 = 715,796.16 : x
  2. Step 2: Convert to fraction form
    1,319,408.16/1,820,786.79 = 715,796.16/x
  3. Step 3: Cross multiply
    1,319,408.16x = 1,820,786.79 × 715,796.16
  4. Step 4: Simplify right side
    1,319,408.16x = 1,303,312,192,460.73
  5. Step 5: Solve for x
    x = 1,303,312,192,460.73/1,319,408.16
  6. Step 6: Final answer
    x = 987,800.62

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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.