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Finding the Fourth Proportional to 673,797, 929,734.16 and 387,263.55

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Solution

The fourth proportional to 673,797, 929,734.16 and 387,263.55 is: 534,362.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,797 : 929,734.16 = 387,263.55 : x
  2. Step 2: Convert to fraction form
    673,797/929,734.16 = 387,263.55/x
  3. Step 3: Cross multiply
    673,797x = 929,734.16 × 387,263.55
  4. Step 4: Simplify right side
    673,797x = 360,052,149,421.55
  5. Step 5: Solve for x
    x = 360,052,149,421.55/673,797
  6. Step 6: Final answer
    x = 534,362.95

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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.