Home / 1,427,514.30-1,968,936.93-1,212,313.50

Finding the Fourth Proportional to 1,427,514.30, 1,968,936.93 and 1,212,313.50

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Solution

The fourth proportional to 1,427,514.30, 1,968,936.93 and 1,212,313.50 is: 1,672,115.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,427,514.30 : 1,968,936.93 = 1,212,313.50 : x
  2. Step 2: Convert to fraction form
    1,427,514.30/1,968,936.93 = 1,212,313.50/x
  3. Step 3: Cross multiply
    1,427,514.30x = 1,968,936.93 × 1,212,313.50
  4. Step 4: Simplify right side
    1,427,514.30x = 2,386,968,820,887.55
  5. Step 5: Solve for x
    x = 2,386,968,820,887.55/1,427,514.30
  6. Step 6: Final answer
    x = 1,672,115.52

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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.