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Finding the Fourth Proportional to 693,004.65, 956,350.35 and 387,093.92

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Solution

The fourth proportional to 693,004.65, 956,350.35 and 387,093.92 is: 534,191.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,004.65 : 956,350.35 = 387,093.92 : x
  2. Step 2: Convert to fraction form
    693,004.65/956,350.35 = 387,093.92/x
  3. Step 3: Cross multiply
    693,004.65x = 956,350.35 × 387,093.92
  4. Step 4: Simplify right side
    693,004.65x = 370,197,401,093.12
  5. Step 5: Solve for x
    x = 370,197,401,093.12/693,004.65
  6. Step 6: Final answer
    x = 534,191.80

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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.