Home / 1,431,402.19-1,975,339.12-819,564.33

Finding the Fourth Proportional to 1,431,402.19, 1,975,339.12 and 819,564.33

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Solution

The fourth proportional to 1,431,402.19, 1,975,339.12 and 819,564.33 is: 1,131,001.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,431,402.19 : 1,975,339.12 = 819,564.33 : x
  2. Step 2: Convert to fraction form
    1,431,402.19/1,975,339.12 = 819,564.33/x
  3. Step 3: Cross multiply
    1,431,402.19x = 1,975,339.12 × 819,564.33
  4. Step 4: Simplify right side
    1,431,402.19x = 1,618,917,489,300.88
  5. Step 5: Solve for x
    x = 1,618,917,489,300.88/1,431,402.19
  6. Step 6: Final answer
    x = 1,131,001.13

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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.