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Finding the Fourth Proportional to 673,220.76, 929,126.32 and 491,841.91

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Solution

The fourth proportional to 673,220.76, 929,126.32 and 491,841.91 is: 678,801.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,220.76 : 929,126.32 = 491,841.91 : x
  2. Step 2: Convert to fraction form
    673,220.76/929,126.32 = 491,841.91/x
  3. Step 3: Cross multiply
    673,220.76x = 929,126.32 × 491,841.91
  4. Step 4: Simplify right side
    673,220.76x = 456,983,263,791.87
  5. Step 5: Solve for x
    x = 456,983,263,791.87/673,220.76
  6. Step 6: Final answer
    x = 678,801.51

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.