Home / 1,449,133.61-2,170,336.88-1,398,689.78

Finding the Fourth Proportional to 1,449,133.61, 2,170,336.88 and 1,398,689.78

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Solution

The fourth proportional to 1,449,133.61, 2,170,336.88 and 1,398,689.78 is: 2,094,788.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,449,133.61 : 2,170,336.88 = 1,398,689.78 : x
  2. Step 2: Convert to fraction form
    1,449,133.61/2,170,336.88 = 1,398,689.78/x
  3. Step 3: Cross multiply
    1,449,133.61x = 2,170,336.88 × 1,398,689.78
  4. Step 4: Simplify right side
    1,449,133.61x = 3,035,628,005,858.13
  5. Step 5: Solve for x
    x = 3,035,628,005,858.13/1,449,133.61
  6. Step 6: Final answer
    x = 2,094,788.21

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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.