Home / 864,161.77-1,296,304.95-331,682.80

Finding the Fourth Proportional to 864,161.77, 1,296,304.95 and 331,682.80

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Solution

The fourth proportional to 864,161.77, 1,296,304.95 and 331,682.80 is: 497,548.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,161.77 : 1,296,304.95 = 331,682.80 : x
  2. Step 2: Convert to fraction form
    864,161.77/1,296,304.95 = 331,682.80/x
  3. Step 3: Cross multiply
    864,161.77x = 1,296,304.95 × 331,682.80
  4. Step 4: Simplify right side
    864,161.77x = 429,962,055,469.86
  5. Step 5: Solve for x
    x = 429,962,055,469.86/864,161.77
  6. Step 6: Final answer
    x = 497,548.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.