Home / 545,044.20-818,052.30-320,123.40

Finding the Fourth Proportional to 545,044.20, 818,052.30 and 320,123.40

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Solution

The fourth proportional to 545,044.20, 818,052.30 and 320,123.40 is: 480,470.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,044.20 : 818,052.30 = 320,123.40 : x
  2. Step 2: Convert to fraction form
    545,044.20/818,052.30 = 320,123.40/x
  3. Step 3: Cross multiply
    545,044.20x = 818,052.30 × 320,123.40
  4. Step 4: Simplify right side
    545,044.20x = 261,877,683,653.82
  5. Step 5: Solve for x
    x = 261,877,683,653.82/545,044.20
  6. Step 6: Final answer
    x = 480,470.54

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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.