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Finding the Fourth Proportional to 1,959,355.07, 2,939,063.76 and 744,950.21

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Solution

The fourth proportional to 1,959,355.07, 2,939,063.76 and 744,950.21 is: 1,117,437.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,959,355.07 : 2,939,063.76 = 744,950.21 : x
  2. Step 2: Convert to fraction form
    1,959,355.07/2,939,063.76 = 744,950.21/x
  3. Step 3: Cross multiply
    1,959,355.07x = 2,939,063.76 × 744,950.21
  4. Step 4: Simplify right side
    1,959,355.07x = 2,189,456,165,215.39
  5. Step 5: Solve for x
    x = 2,189,456,165,215.39/1,959,355.07
  6. Step 6: Final answer
    x = 1,117,437.16

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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.