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Finding the Fourth Proportional to 525,767.61, 788,651.42 and 126,408.39

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Solution

The fourth proportional to 525,767.61, 788,651.42 and 126,408.39 is: 189,612.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,767.61 : 788,651.42 = 126,408.39 : x
  2. Step 2: Convert to fraction form
    525,767.61/788,651.42 = 126,408.39/x
  3. Step 3: Cross multiply
    525,767.61x = 788,651.42 × 126,408.39
  4. Step 4: Simplify right side
    525,767.61x = 99,692,156,273.41
  5. Step 5: Solve for x
    x = 99,692,156,273.41/525,767.61
  6. Step 6: Final answer
    x = 189,612.59

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Similar ratio
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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.