Home / 1,820,968.39-2,512,936.89-1,005,172.62

Finding the Fourth Proportional to 1,820,968.39, 2,512,936.89 and 1,005,172.62

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Solution

The fourth proportional to 1,820,968.39, 2,512,936.89 and 1,005,172.62 is: 1,387,138.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,820,968.39 : 2,512,936.89 = 1,005,172.62 : x
  2. Step 2: Convert to fraction form
    1,820,968.39/2,512,936.89 = 1,005,172.62/x
  3. Step 3: Cross multiply
    1,820,968.39x = 2,512,936.89 × 1,005,172.62
  4. Step 4: Simplify right side
    1,820,968.39x = 2,525,935,357,615.95
  5. Step 5: Solve for x
    x = 2,525,935,357,615.95/1,820,968.39
  6. Step 6: Final answer
    x = 1,387,138.50

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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.