Home / 497,720.40-686,592.24-336,629.60

Finding the Fourth Proportional to 497,720.40, 686,592.24 and 336,629.60

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Solution

The fourth proportional to 497,720.40, 686,592.24 and 336,629.60 is: 464,371.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,720.40 : 686,592.24 = 336,629.60 : x
  2. Step 2: Convert to fraction form
    497,720.40/686,592.24 = 336,629.60/x
  3. Step 3: Cross multiply
    497,720.40x = 686,592.24 × 336,629.60
  4. Step 4: Simplify right side
    497,720.40x = 231,127,271,114.30
  5. Step 5: Solve for x
    x = 231,127,271,114.30/497,720.40
  6. Step 6: Final answer
    x = 464,371.71

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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.