Home / 497,187.72-686,120.22-270,828.36

Finding the Fourth Proportional to 497,187.72, 686,120.22 and 270,828.36

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Solution

The fourth proportional to 497,187.72, 686,120.22 and 270,828.36 is: 373,743.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,187.72 : 686,120.22 = 270,828.36 : x
  2. Step 2: Convert to fraction form
    497,187.72/686,120.22 = 270,828.36/x
  3. Step 3: Cross multiply
    497,187.72x = 686,120.22 × 270,828.36
  4. Step 4: Simplify right side
    497,187.72x = 185,820,813,945.44
  5. Step 5: Solve for x
    x = 185,820,813,945.44/497,187.72
  6. Step 6: Final answer
    x = 373,743.77

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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.