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Finding the Fourth Proportional to 555,930.81, 767,163.96 and 301,276.53

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Solution

The fourth proportional to 555,930.81, 767,163.96 and 301,276.53 is: 415,750.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,930.81 : 767,163.96 = 301,276.53 : x
  2. Step 2: Convert to fraction form
    555,930.81/767,163.96 = 301,276.53/x
  3. Step 3: Cross multiply
    555,930.81x = 767,163.96 × 301,276.53
  4. Step 4: Simplify right side
    555,930.81x = 231,128,495,809.86
  5. Step 5: Solve for x
    x = 231,128,495,809.86/555,930.81
  6. Step 6: Final answer
    x = 415,750.47

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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.