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Finding the Fourth Proportional to 1,387,160, 2,080,740 and 336,536

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Solution

The fourth proportional to 1,387,160, 2,080,740 and 336,536 is: 504,804

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,387,160 : 2,080,740 = 336,536 : x
  2. Step 2: Convert to fraction form
    1,387,160/2,080,740 = 336,536/x
  3. Step 3: Cross multiply
    1,387,160x = 2,080,740 × 336,536
  4. Step 4: Simplify right side
    1,387,160x = 700,243,916,640
  5. Step 5: Solve for x
    x = 700,243,916,640/1,387,160
  6. Step 6: Final answer
    x = 504,804

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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.