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Finding the Fourth Proportional to 646,445.88, 892,109.70 and 359,992.62

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Solution

The fourth proportional to 646,445.88, 892,109.70 and 359,992.62 is: 496,797.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,445.88 : 892,109.70 = 359,992.62 : x
  2. Step 2: Convert to fraction form
    646,445.88/892,109.70 = 359,992.62/x
  3. Step 3: Cross multiply
    646,445.88x = 892,109.70 × 359,992.62
  4. Step 4: Simplify right side
    646,445.88x = 321,152,908,230.41
  5. Step 5: Solve for x
    x = 321,152,908,230.41/646,445.88
  6. Step 6: Final answer
    x = 496,797.83

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1.5x scale

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.