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Finding the Fourth Proportional to 501,949.44, 693,014.40 and 311,166.72

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Solution

The fourth proportional to 501,949.44, 693,014.40 and 311,166.72 is: 429,611.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,949.44 : 693,014.40 = 311,166.72 : x
  2. Step 2: Convert to fraction form
    501,949.44/693,014.40 = 311,166.72/x
  3. Step 3: Cross multiply
    501,949.44x = 693,014.40 × 311,166.72
  4. Step 4: Simplify right side
    501,949.44x = 215,643,017,760.77
  5. Step 5: Solve for x
    x = 215,643,017,760.77/501,949.44
  6. Step 6: Final answer
    x = 429,611.03

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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.