Home / 1,311,815.04-1,798,505.02-1,287,903.84

Finding the Fourth Proportional to 1,311,815.04, 1,798,505.02 and 1,287,903.84

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Solution

The fourth proportional to 1,311,815.04, 1,798,505.02 and 1,287,903.84 is: 1,765,722.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,311,815.04 : 1,798,505.02 = 1,287,903.84 : x
  2. Step 2: Convert to fraction form
    1,311,815.04/1,798,505.02 = 1,287,903.84/x
  3. Step 3: Cross multiply
    1,311,815.04x = 1,798,505.02 × 1,287,903.84
  4. Step 4: Simplify right side
    1,311,815.04x = 2,316,301,521,517.28
  5. Step 5: Solve for x
    x = 2,316,301,521,517.28/1,311,815.04
  6. Step 6: Final answer
    x = 1,765,722.64

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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.