Home / 497,439.94-686,447.09-271,080.58

Finding the Fourth Proportional to 497,439.94, 686,447.09 and 271,080.58

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Solution

The fourth proportional to 497,439.94, 686,447.09 and 271,080.58 is: 374,080.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,439.94 : 686,447.09 = 271,080.58 : x
  2. Step 2: Convert to fraction form
    497,439.94/686,447.09 = 271,080.58/x
  3. Step 3: Cross multiply
    497,439.94x = 686,447.09 × 271,080.58
  4. Step 4: Simplify right side
    497,439.94x = 186,082,475,296.51
  5. Step 5: Solve for x
    x = 186,082,475,296.51/497,439.94
  6. Step 6: Final answer
    x = 374,080.29

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1.5x scale

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.