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Finding the Fourth Proportional to 1,343,489.32, 1,854,007.14 and 739,873

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Solution

The fourth proportional to 1,343,489.32, 1,854,007.14 and 739,873 is: 1,021,020.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,343,489.32 : 1,854,007.14 = 739,873 : x
  2. Step 2: Convert to fraction form
    1,343,489.32/1,854,007.14 = 739,873/x
  3. Step 3: Cross multiply
    1,343,489.32x = 1,854,007.14 × 739,873
  4. Step 4: Simplify right side
    1,343,489.32x = 1,371,729,824,693.22
  5. Step 5: Solve for x
    x = 1,371,729,824,693.22/1,343,489.32
  6. Step 6: Final answer
    x = 1,021,020.27

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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.