Home / 1,311,814.04-1,798,503.65-1,287,902.84

Finding the Fourth Proportional to 1,311,814.04, 1,798,503.65 and 1,287,902.84

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Solution

The fourth proportional to 1,311,814.04, 1,798,503.65 and 1,287,902.84 is: 1,765,721.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,311,814.04 : 1,798,503.65 = 1,287,902.84 : x
  2. Step 2: Convert to fraction form
    1,311,814.04/1,798,503.65 = 1,287,902.84/x
  3. Step 3: Cross multiply
    1,311,814.04x = 1,798,503.65 × 1,287,902.84
  4. Step 4: Simplify right side
    1,311,814.04x = 2,316,297,947,982.97
  5. Step 5: Solve for x
    x = 2,316,297,947,982.97/1,311,814.04
  6. Step 6: Final answer
    x = 1,765,721.27

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.