Home / 1,384,007.22-1,909,985.25-772,213.44

Finding the Fourth Proportional to 1,384,007.22, 1,909,985.25 and 772,213.44

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Solution

The fourth proportional to 1,384,007.22, 1,909,985.25 and 772,213.44 is: 1,065,685.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,384,007.22 : 1,909,985.25 = 772,213.44 : x
  2. Step 2: Convert to fraction form
    1,384,007.22/1,909,985.25 = 772,213.44/x
  3. Step 3: Cross multiply
    1,384,007.22x = 1,909,985.25 × 772,213.44
  4. Step 4: Simplify right side
    1,384,007.22x = 1,474,916,280,251.76
  5. Step 5: Solve for x
    x = 1,474,916,280,251.76/1,384,007.22
  6. Step 6: Final answer
    x = 1,065,685.39

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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.