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Finding the Fourth Proportional to 673,854.82, 929,912.51 and 367,930.23

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Solution

The fourth proportional to 673,854.82, 929,912.51 and 367,930.23 is: 507,739.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,854.82 : 929,912.51 = 367,930.23 : x
  2. Step 2: Convert to fraction form
    673,854.82/929,912.51 = 367,930.23/x
  3. Step 3: Cross multiply
    673,854.82x = 929,912.51 × 367,930.23
  4. Step 4: Simplify right side
    673,854.82x = 342,142,921,116.83
  5. Step 5: Solve for x
    x = 342,142,921,116.83/673,854.82
  6. Step 6: Final answer
    x = 507,739.82

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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.