Home / 1,179,177-1,769,139.24-421,001.88

Finding the Fourth Proportional to 1,179,177, 1,769,139.24 and 421,001.88

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Solution

The fourth proportional to 1,179,177, 1,769,139.24 and 421,001.88 is: 631,636.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,179,177 : 1,769,139.24 = 421,001.88 : x
  2. Step 2: Convert to fraction form
    1,179,177/1,769,139.24 = 421,001.88/x
  3. Step 3: Cross multiply
    1,179,177x = 1,769,139.24 × 421,001.88
  4. Step 4: Simplify right side
    1,179,177x = 744,810,946,021.77
  5. Step 5: Solve for x
    x = 744,810,946,021.77/1,179,177
  6. Step 6: Final answer
    x = 631,636.26

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.