Home / 555,643.56-766,788.06-300,994.68

Finding the Fourth Proportional to 555,643.56, 766,788.06 and 300,994.68

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Solution

The fourth proportional to 555,643.56, 766,788.06 and 300,994.68 is: 415,372.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,643.56 : 766,788.06 = 300,994.68 : x
  2. Step 2: Convert to fraction form
    555,643.56/766,788.06 = 300,994.68/x
  3. Step 3: Cross multiply
    555,643.56x = 766,788.06 × 300,994.68
  4. Step 4: Simplify right side
    555,643.56x = 230,799,126,747.52
  5. Step 5: Solve for x
    x = 230,799,126,747.52/555,643.56
  6. Step 6: Final answer
    x = 415,372.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.