Home / 1,671,406.21-2,507,468.97-518,629.79

Finding the Fourth Proportional to 1,671,406.21, 2,507,468.97 and 518,629.79

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Solution

The fourth proportional to 1,671,406.21, 2,507,468.97 and 518,629.79 is: 778,056.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,671,406.21 : 2,507,468.97 = 518,629.79 : x
  2. Step 2: Convert to fraction form
    1,671,406.21/2,507,468.97 = 518,629.79/x
  3. Step 3: Cross multiply
    1,671,406.21x = 2,507,468.97 × 518,629.79
  4. Step 4: Simplify right side
    1,671,406.21x = 1,300,448,113,131.26
  5. Step 5: Solve for x
    x = 1,300,448,113,131.26/1,671,406.21
  6. Step 6: Final answer
    x = 778,056.29

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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.