Home / 1,612,638.91-2,419,308.29-490,678.75

Finding the Fourth Proportional to 1,612,638.91, 2,419,308.29 and 490,678.75

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Solution

The fourth proportional to 1,612,638.91, 2,419,308.29 and 490,678.75 is: 736,124.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,612,638.91 : 2,419,308.29 = 490,678.75 : x
  2. Step 2: Convert to fraction form
    1,612,638.91/2,419,308.29 = 490,678.75/x
  3. Step 3: Cross multiply
    1,612,638.91x = 2,419,308.29 × 490,678.75
  4. Step 4: Simplify right side
    1,612,638.91x = 1,187,103,167,601.84
  5. Step 5: Solve for x
    x = 1,187,103,167,601.84/1,612,638.91
  6. Step 6: Final answer
    x = 736,124.60

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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.