Home / 1,328,133.88-1,993,556.76-972,090.28

Finding the Fourth Proportional to 1,328,133.88, 1,993,556.76 and 972,090.28

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Solution

The fourth proportional to 1,328,133.88, 1,993,556.76 and 972,090.28 is: 1,459,127.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,328,133.88 : 1,993,556.76 = 972,090.28 : x
  2. Step 2: Convert to fraction form
    1,328,133.88/1,993,556.76 = 972,090.28/x
  3. Step 3: Cross multiply
    1,328,133.88x = 1,993,556.76 × 972,090.28
  4. Step 4: Simplify right side
    1,328,133.88x = 1,937,917,149,024.29
  5. Step 5: Solve for x
    x = 1,937,917,149,024.29/1,328,133.88
  6. Step 6: Final answer
    x = 1,459,127.86

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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.