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Finding the Fourth Proportional to 555,835.98, 767,056.32 and 301,187.64

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Solution

The fourth proportional to 555,835.98, 767,056.32 and 301,187.64 is: 415,640.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,835.98 : 767,056.32 = 301,187.64 : x
  2. Step 2: Convert to fraction form
    555,835.98/767,056.32 = 301,187.64/x
  3. Step 3: Cross multiply
    555,835.98x = 767,056.32 × 301,187.64
  4. Step 4: Simplify right side
    555,835.98x = 231,027,882,767.89
  5. Step 5: Solve for x
    x = 231,027,882,767.89/555,835.98
  6. Step 6: Final answer
    x = 415,640.39

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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.