Home / 439,623.85-658,402.38-214,278.07

Finding the Fourth Proportional to 439,623.85, 658,402.38 and 214,278.07

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Solution

The fourth proportional to 439,623.85, 658,402.38 and 214,278.07 is: 320,913.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,623.85 : 658,402.38 = 214,278.07 : x
  2. Step 2: Convert to fraction form
    439,623.85/658,402.38 = 214,278.07/x
  3. Step 3: Cross multiply
    439,623.85x = 658,402.38 × 214,278.07
  4. Step 4: Simplify right side
    439,623.85x = 141,081,191,269.81
  5. Step 5: Solve for x
    x = 141,081,191,269.81/439,623.85
  6. Step 6: Final answer
    x = 320,913.42

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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.