Home / 1,433,617.60-1,978,392.42-780,246.04

Finding the Fourth Proportional to 1,433,617.60, 1,978,392.42 and 780,246.04

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Solution

The fourth proportional to 1,433,617.60, 1,978,392.42 and 780,246.04 is: 1,076,739.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,433,617.60 : 1,978,392.42 = 780,246.04 : x
  2. Step 2: Convert to fraction form
    1,433,617.60/1,978,392.42 = 780,246.04/x
  3. Step 3: Cross multiply
    1,433,617.60x = 1,978,392.42 × 780,246.04
  4. Step 4: Simplify right side
    1,433,617.60x = 1,543,632,851,271.02
  5. Step 5: Solve for x
    x = 1,543,632,851,271.02/1,433,617.60
  6. Step 6: Final answer
    x = 1,076,739.61

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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.