Home / 1,353,254.80-1,867,690.56-780,183.04

Finding the Fourth Proportional to 1,353,254.80, 1,867,690.56 and 780,183.04

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Solution

The fourth proportional to 1,353,254.80, 1,867,690.56 and 780,183.04 is: 1,076,767.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,353,254.80 : 1,867,690.56 = 780,183.04 : x
  2. Step 2: Convert to fraction form
    1,353,254.80/1,867,690.56 = 780,183.04/x
  3. Step 3: Cross multiply
    1,353,254.80x = 1,867,690.56 × 780,183.04
  4. Step 4: Simplify right side
    1,353,254.80x = 1,457,140,498,880.10
  5. Step 5: Solve for x
    x = 1,457,140,498,880.10/1,353,254.80
  6. Step 6: Final answer
    x = 1,076,767.29

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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.