Home / 1,388,404.90-2,080,274.55-676,900.90

Finding the Fourth Proportional to 1,388,404.90, 2,080,274.55 and 676,900.90

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Solution

The fourth proportional to 1,388,404.90, 2,080,274.55 and 676,900.90 is: 1,014,214.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,388,404.90 : 2,080,274.55 = 676,900.90 : x
  2. Step 2: Convert to fraction form
    1,388,404.90/2,080,274.55 = 676,900.90/x
  3. Step 3: Cross multiply
    1,388,404.90x = 2,080,274.55 × 676,900.90
  4. Step 4: Simplify right side
    1,388,404.90x = 1,408,139,715,142.10
  5. Step 5: Solve for x
    x = 1,408,139,715,142.10/1,388,404.90
  6. Step 6: Final answer
    x = 1,014,214.02

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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.