Home / 426,557.48-638,977.82-202,134.34

Finding the Fourth Proportional to 426,557.48, 638,977.82 and 202,134.34

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Solution

The fourth proportional to 426,557.48, 638,977.82 and 202,134.34 is: 302,794.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,557.48 : 638,977.82 = 202,134.34 : x
  2. Step 2: Convert to fraction form
    426,557.48/638,977.82 = 202,134.34/x
  3. Step 3: Cross multiply
    426,557.48x = 638,977.82 × 202,134.34
  4. Step 4: Simplify right side
    426,557.48x = 129,159,356,725.45
  5. Step 5: Solve for x
    x = 129,159,356,725.45/426,557.48
  6. Step 6: Final answer
    x = 302,794.73

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.