Home / 1,207,431.54-1,666,174.80-663,555.60

Finding the Fourth Proportional to 1,207,431.54, 1,666,174.80 and 663,555.60

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Solution

The fourth proportional to 1,207,431.54, 1,666,174.80 and 663,555.60 is: 915,662.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,207,431.54 : 1,666,174.80 = 663,555.60 : x
  2. Step 2: Convert to fraction form
    1,207,431.54/1,666,174.80 = 663,555.60/x
  3. Step 3: Cross multiply
    1,207,431.54x = 1,666,174.80 × 663,555.60
  4. Step 4: Simplify right side
    1,207,431.54x = 1,105,599,619,118.88
  5. Step 5: Solve for x
    x = 1,105,599,619,118.88/1,207,431.54
  6. Step 6: Final answer
    x = 915,662.36

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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.