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Finding the Fourth Proportional to 559,498.98, 771,778.92 and 395,971.54

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Solution

The fourth proportional to 559,498.98, 771,778.92 and 395,971.54 is: 546,207.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,498.98 : 771,778.92 = 395,971.54 : x
  2. Step 2: Convert to fraction form
    559,498.98/771,778.92 = 395,971.54/x
  3. Step 3: Cross multiply
    559,498.98x = 771,778.92 × 395,971.54
  4. Step 4: Simplify right side
    559,498.98x = 305,602,487,491.94
  5. Step 5: Solve for x
    x = 305,602,487,491.94/559,498.98
  6. Step 6: Final answer
    x = 546,207.41

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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.