Home / 1,388,448.40-2,080,339.80-676,944.40

Finding the Fourth Proportional to 1,388,448.40, 2,080,339.80 and 676,944.40

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Solution

The fourth proportional to 1,388,448.40, 2,080,339.80 and 676,944.40 is: 1,014,279.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,388,448.40 : 2,080,339.80 = 676,944.40 : x
  2. Step 2: Convert to fraction form
    1,388,448.40/2,080,339.80 = 676,944.40/x
  3. Step 3: Cross multiply
    1,388,448.40x = 2,080,339.80 × 676,944.40
  4. Step 4: Simplify right side
    1,388,448.40x = 1,408,274,377,707.12
  5. Step 5: Solve for x
    x = 1,408,274,377,707.12/1,388,448.40
  6. Step 6: Final answer
    x = 1,014,279.23

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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.