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Finding the Fourth Proportional to 1,385,950, 1,912,611 and 750,046

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Solution

The fourth proportional to 1,385,950, 1,912,611 and 750,046 is: 1,035,063.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,385,950 : 1,912,611 = 750,046 : x
  2. Step 2: Convert to fraction form
    1,385,950/1,912,611 = 750,046/x
  3. Step 3: Cross multiply
    1,385,950x = 1,912,611 × 750,046
  4. Step 4: Simplify right side
    1,385,950x = 1,434,546,230,106
  5. Step 5: Solve for x
    x = 1,434,546,230,106/1,385,950
  6. Step 6: Final answer
    x = 1,035,063.48

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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.