Home / 413,664.08-620,595.84-143,753

Finding the Fourth Proportional to 413,664.08, 620,595.84 and 143,753

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Solution

The fourth proportional to 413,664.08, 620,595.84 and 143,753 is: 215,664.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    413,664.08 : 620,595.84 = 143,753 : x
  2. Step 2: Convert to fraction form
    413,664.08/620,595.84 = 143,753/x
  3. Step 3: Cross multiply
    413,664.08x = 620,595.84 × 143,753
  4. Step 4: Simplify right side
    413,664.08x = 89,212,513,787.52
  5. Step 5: Solve for x
    x = 89,212,513,787.52/413,664.08
  6. Step 6: Final answer
    x = 215,664.15

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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.