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Finding the Fourth Proportional to 555,842, 767,064.62 and 301,193.64

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Solution

The fourth proportional to 555,842, 767,064.62 and 301,193.64 is: 415,648.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,842 : 767,064.62 = 301,193.64 : x
  2. Step 2: Convert to fraction form
    555,842/767,064.62 = 301,193.64/x
  3. Step 3: Cross multiply
    555,842x = 767,064.62 × 301,193.64
  4. Step 4: Simplify right side
    555,842x = 231,034,985,013.02
  5. Step 5: Solve for x
    x = 231,034,985,013.02/555,842
  6. Step 6: Final answer
    x = 415,648.66

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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.