Home / 1,431,402.34-1,975,339.32-819,564.48

Finding the Fourth Proportional to 1,431,402.34, 1,975,339.32 and 819,564.48

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Solution

The fourth proportional to 1,431,402.34, 1,975,339.32 and 819,564.48 is: 1,131,001.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,431,402.34 : 1,975,339.32 = 819,564.48 : x
  2. Step 2: Convert to fraction form
    1,431,402.34/1,975,339.32 = 819,564.48/x
  3. Step 3: Cross multiply
    1,431,402.34x = 1,975,339.32 × 819,564.48
  4. Step 4: Simplify right side
    1,431,402.34x = 1,618,917,942,619.35
  5. Step 5: Solve for x
    x = 1,618,917,942,619.35/1,431,402.34
  6. Step 6: Final answer
    x = 1,131,001.32

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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.