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Finding the Fourth Proportional to 555,786.49, 766,985.86 and 301,137.68

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Solution

The fourth proportional to 555,786.49, 766,985.86 and 301,137.68 is: 415,570.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,786.49 : 766,985.86 = 301,137.68 : x
  2. Step 2: Convert to fraction form
    555,786.49/766,985.86 = 301,137.68/x
  3. Step 3: Cross multiply
    555,786.49x = 766,985.86 × 301,137.68
  4. Step 4: Simplify right side
    555,786.49x = 230,968,337,885.43
  5. Step 5: Solve for x
    x = 230,968,337,885.43/555,786.49
  6. Step 6: Final answer
    x = 415,570.26

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1.5x scale

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.