Home / 864,012.60-1,295,630.10-331,356.60

Finding the Fourth Proportional to 864,012.60, 1,295,630.10 and 331,356.60

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Solution

The fourth proportional to 864,012.60, 1,295,630.10 and 331,356.60 is: 496,885.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,012.60 : 1,295,630.10 = 331,356.60 : x
  2. Step 2: Convert to fraction form
    864,012.60/1,295,630.10 = 331,356.60/x
  3. Step 3: Cross multiply
    864,012.60x = 1,295,630.10 × 331,356.60
  4. Step 4: Simplify right side
    864,012.60x = 429,315,584,793.66
  5. Step 5: Solve for x
    x = 429,315,584,793.66/864,012.60
  6. Step 6: Final answer
    x = 496,885.79

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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.