Home / 1,208,016.99-1,665,693.82-771,858.11

Finding the Fourth Proportional to 1,208,016.99, 1,665,693.82 and 771,858.11

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Solution

The fourth proportional to 1,208,016.99, 1,665,693.82 and 771,858.11 is: 1,064,289.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,208,016.99 : 1,665,693.82 = 771,858.11 : x
  2. Step 2: Convert to fraction form
    1,208,016.99/1,665,693.82 = 771,858.11/x
  3. Step 3: Cross multiply
    1,208,016.99x = 1,665,693.82 × 771,858.11
  4. Step 4: Simplify right side
    1,208,016.99x = 1,285,679,283,743.88
  5. Step 5: Solve for x
    x = 1,285,679,283,743.88/1,208,016.99
  6. Step 6: Final answer
    x = 1,064,289.07

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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.