Home / 1,980,206.78-2,732,678.42-1,074,788.78

Finding the Fourth Proportional to 1,980,206.78, 2,732,678.42 and 1,074,788.78

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Solution

The fourth proportional to 1,980,206.78, 2,732,678.42 and 1,074,788.78 is: 1,483,204.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,980,206.78 : 2,732,678.42 = 1,074,788.78 : x
  2. Step 2: Convert to fraction form
    1,980,206.78/2,732,678.42 = 1,074,788.78/x
  3. Step 3: Cross multiply
    1,980,206.78x = 2,732,678.42 × 1,074,788.78
  4. Step 4: Simplify right side
    1,980,206.78x = 2,937,052,105,164.13
  5. Step 5: Solve for x
    x = 2,937,052,105,164.13/1,980,206.78
  6. Step 6: Final answer
    x = 1,483,204.75

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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.