Home / 1,327,048.40-1,990,572.05-329,776.40

Finding the Fourth Proportional to 1,327,048.40, 1,990,572.05 and 329,776.40

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Solution

The fourth proportional to 1,327,048.40, 1,990,572.05 and 329,776.40 is: 494,664.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,327,048.40 : 1,990,572.05 = 329,776.40 : x
  2. Step 2: Convert to fraction form
    1,327,048.40/1,990,572.05 = 329,776.40/x
  3. Step 3: Cross multiply
    1,327,048.40x = 1,990,572.05 × 329,776.40
  4. Step 4: Simplify right side
    1,327,048.40x = 656,443,672,987.88
  5. Step 5: Solve for x
    x = 656,443,672,987.88/1,327,048.40
  6. Step 6: Final answer
    x = 494,664.46

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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.