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Finding the Fourth Proportional to 1,509,741, 2,264,611.50 and 387,810

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Solution

The fourth proportional to 1,509,741, 2,264,611.50 and 387,810 is: 581,715

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,509,741 : 2,264,611.50 = 387,810 : x
  2. Step 2: Convert to fraction form
    1,509,741/2,264,611.50 = 387,810/x
  3. Step 3: Cross multiply
    1,509,741x = 2,264,611.50 × 387,810
  4. Step 4: Simplify right side
    1,509,741x = 878,238,985,815
  5. Step 5: Solve for x
    x = 878,238,985,815/1,509,741
  6. Step 6: Final answer
    x = 581,715

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.