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Finding the Fourth Proportional to 443,690.40, 612,418.37 and 262,465.34

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Solution

The fourth proportional to 443,690.40, 612,418.37 and 262,465.34 is: 362,276.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,690.40 : 612,418.37 = 262,465.34 : x
  2. Step 2: Convert to fraction form
    443,690.40/612,418.37 = 262,465.34/x
  3. Step 3: Cross multiply
    443,690.40x = 612,418.37 × 262,465.34
  4. Step 4: Simplify right side
    443,690.40x = 160,738,591,329.88
  5. Step 5: Solve for x
    x = 160,738,591,329.88/443,690.40
  6. Step 6: Final answer
    x = 362,276.47

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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.