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Finding the Fourth Proportional to 673,836.31, 929,897.30 and 367,918.88

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Solution

The fourth proportional to 673,836.31, 929,897.30 and 367,918.88 is: 507,729.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,836.31 : 929,897.30 = 367,918.88 : x
  2. Step 2: Convert to fraction form
    673,836.31/929,897.30 = 367,918.88/x
  3. Step 3: Cross multiply
    673,836.31x = 929,897.30 × 367,918.88
  4. Step 4: Simplify right side
    673,836.31x = 342,126,773,131.02
  5. Step 5: Solve for x
    x = 342,126,773,131.02/673,836.31
  6. Step 6: Final answer
    x = 507,729.80

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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.