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Finding the Fourth Proportional to 1,300,135.24, 1,949,822.07 and 489,935.08

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Solution

The fourth proportional to 1,300,135.24, 1,949,822.07 and 489,935.08 is: 734,759.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,300,135.24 : 1,949,822.07 = 489,935.08 : x
  2. Step 2: Convert to fraction form
    1,300,135.24/1,949,822.07 = 489,935.08/x
  3. Step 3: Cross multiply
    1,300,135.24x = 1,949,822.07 × 489,935.08
  4. Step 4: Simplify right side
    1,300,135.24x = 955,286,231,851.22
  5. Step 5: Solve for x
    x = 955,286,231,851.22/1,300,135.24
  6. Step 6: Final answer
    x = 734,759.13

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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.