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Finding the Fourth Proportional to 555,658.56, 766,808.12 and 301,010.80

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Solution

The fourth proportional to 555,658.56, 766,808.12 and 301,010.80 is: 415,394.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,658.56 : 766,808.12 = 301,010.80 : x
  2. Step 2: Convert to fraction form
    555,658.56/766,808.12 = 301,010.80/x
  3. Step 3: Cross multiply
    555,658.56x = 766,808.12 × 301,010.80
  4. Step 4: Simplify right side
    555,658.56x = 230,817,525,647.70
  5. Step 5: Solve for x
    x = 230,817,525,647.70/555,658.56
  6. Step 6: Final answer
    x = 415,394.53

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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.