Home / 497,638.26-686,739.24-271,283.76

Finding the Fourth Proportional to 497,638.26, 686,739.24 and 271,283.76

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Solution

The fourth proportional to 497,638.26, 686,739.24 and 271,283.76 is: 374,370.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,638.26 : 686,739.24 = 271,283.76 : x
  2. Step 2: Convert to fraction form
    497,638.26/686,739.24 = 271,283.76/x
  3. Step 3: Cross multiply
    497,638.26x = 686,739.24 × 271,283.76
  4. Step 4: Simplify right side
    497,638.26x = 186,301,203,166.74
  5. Step 5: Solve for x
    x = 186,301,203,166.74/497,638.26
  6. Step 6: Final answer
    x = 374,370.74

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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.