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Finding the Fourth Proportional to 1,042,479, 1,438,611.30 and 589,770

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Solution

The fourth proportional to 1,042,479, 1,438,611.30 and 589,770 is: 813,877.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,042,479 : 1,438,611.30 = 589,770 : x
  2. Step 2: Convert to fraction form
    1,042,479/1,438,611.30 = 589,770/x
  3. Step 3: Cross multiply
    1,042,479x = 1,438,611.30 × 589,770
  4. Step 4: Simplify right side
    1,042,479x = 848,449,786,401
  5. Step 5: Solve for x
    x = 848,449,786,401/1,042,479
  6. Step 6: Final answer
    x = 813,877.10

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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.