Home / 1,388,656.37-2,080,946.67-782,624.49

Finding the Fourth Proportional to 1,388,656.37, 2,080,946.67 and 782,624.49

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Solution

The fourth proportional to 1,388,656.37, 2,080,946.67 and 782,624.49 is: 1,172,788.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,388,656.37 : 2,080,946.67 = 782,624.49 : x
  2. Step 2: Convert to fraction form
    1,388,656.37/2,080,946.67 = 782,624.49/x
  3. Step 3: Cross multiply
    1,388,656.37x = 2,080,946.67 × 782,624.49
  4. Step 4: Simplify right side
    1,388,656.37x = 1,628,599,826,325.95
  5. Step 5: Solve for x
    x = 1,628,599,826,325.95/1,388,656.37
  6. Step 6: Final answer
    x = 1,172,788.22

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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.