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Finding the Fourth Proportional to 555,805.66, 767,012.52 and 301,156.78

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Solution

The fourth proportional to 555,805.66, 767,012.52 and 301,156.78 is: 415,596.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,805.66 : 767,012.52 = 301,156.78 : x
  2. Step 2: Convert to fraction form
    555,805.66/767,012.52 = 301,156.78/x
  3. Step 3: Cross multiply
    555,805.66x = 767,012.52 × 301,156.78
  4. Step 4: Simplify right side
    555,805.66x = 230,991,020,742.89
  5. Step 5: Solve for x
    x = 230,991,020,742.89/555,805.66
  6. Step 6: Final answer
    x = 415,596.74

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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.