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Finding the Fourth Proportional to 555,730.74, 766,909.23 and 301,081.95

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Solution

The fourth proportional to 555,730.74, 766,909.23 and 301,081.95 is: 415,493.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,730.74 : 766,909.23 = 301,081.95 : x
  2. Step 2: Convert to fraction form
    555,730.74/766,909.23 = 301,081.95/x
  3. Step 3: Cross multiply
    555,730.74x = 766,909.23 × 301,081.95
  4. Step 4: Simplify right side
    555,730.74x = 230,902,526,441.40
  5. Step 5: Solve for x
    x = 230,902,526,441.40/555,730.74
  6. Step 6: Final answer
    x = 415,493.53

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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.