Home / 1,201,971.58-1,658,657.64-658,003.12

Finding the Fourth Proportional to 1,201,971.58, 1,658,657.64 and 658,003.12

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Solution

The fourth proportional to 1,201,971.58, 1,658,657.64 and 658,003.12 is: 908,009.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,201,971.58 : 1,658,657.64 = 658,003.12 : x
  2. Step 2: Convert to fraction form
    1,201,971.58/1,658,657.64 = 658,003.12/x
  3. Step 3: Cross multiply
    1,201,971.58x = 1,658,657.64 × 658,003.12
  4. Step 4: Simplify right side
    1,201,971.58x = 1,091,401,902,131.84
  5. Step 5: Solve for x
    x = 1,091,401,902,131.84/1,201,971.58
  6. Step 6: Final answer
    x = 908,009.74

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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.