Home / 1,353,256.80-1,867,693.32-780,185.04

Finding the Fourth Proportional to 1,353,256.80, 1,867,693.32 and 780,185.04

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Solution

The fourth proportional to 1,353,256.80, 1,867,693.32 and 780,185.04 is: 1,076,770.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,353,256.80 : 1,867,693.32 = 780,185.04 : x
  2. Step 2: Convert to fraction form
    1,353,256.80/1,867,693.32 = 780,185.04/x
  3. Step 3: Cross multiply
    1,353,256.80x = 1,867,693.32 × 780,185.04
  4. Step 4: Simplify right side
    1,353,256.80x = 1,457,146,387,571.93
  5. Step 5: Solve for x
    x = 1,457,146,387,571.93/1,353,256.80
  6. Step 6: Final answer
    x = 1,076,770.05

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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.