Home / 1,005,412.58-1,388,137.41-772,424.48

Finding the Fourth Proportional to 1,005,412.58, 1,388,137.41 and 772,424.48

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Solution

The fourth proportional to 1,005,412.58, 1,388,137.41 and 772,424.48 is: 1,066,459.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,005,412.58 : 1,388,137.41 = 772,424.48 : x
  2. Step 2: Convert to fraction form
    1,005,412.58/1,388,137.41 = 772,424.48/x
  3. Step 3: Cross multiply
    1,005,412.58x = 1,388,137.41 × 772,424.48
  4. Step 4: Simplify right side
    1,005,412.58x = 1,072,231,320,558.14
  5. Step 5: Solve for x
    x = 1,072,231,320,558.14/1,005,412.58
  6. Step 6: Final answer
    x = 1,066,459.03

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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.