Home / 497,731.36-686,869.96-271,376.86

Finding the Fourth Proportional to 497,731.36, 686,869.96 and 271,376.86

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Solution

The fourth proportional to 497,731.36, 686,869.96 and 271,376.86 is: 374,500.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,731.36 : 686,869.96 = 271,376.86 : x
  2. Step 2: Convert to fraction form
    497,731.36/686,869.96 = 271,376.86/x
  3. Step 3: Cross multiply
    497,731.36x = 686,869.96 × 271,376.86
  4. Step 4: Simplify right side
    497,731.36x = 186,400,612,973.13
  5. Step 5: Solve for x
    x = 186,400,612,973.13/497,731.36
  6. Step 6: Final answer
    x = 374,500.44

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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.