Home / 1,218,444.07-1,681,894.38-709,146.58

Finding the Fourth Proportional to 1,218,444.07, 1,681,894.38 and 709,146.58

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Solution

The fourth proportional to 1,218,444.07, 1,681,894.38 and 709,146.58 is: 978,879.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,444.07 : 1,681,894.38 = 709,146.58 : x
  2. Step 2: Convert to fraction form
    1,218,444.07/1,681,894.38 = 709,146.58/x
  3. Step 3: Cross multiply
    1,218,444.07x = 1,681,894.38 × 709,146.58
  4. Step 4: Simplify right side
    1,218,444.07x = 1,192,709,647,498.22
  5. Step 5: Solve for x
    x = 1,192,709,647,498.22/1,218,444.07
  6. Step 6: Final answer
    x = 978,879.27

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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.