Home / 780,349.74-1,076,879.50-436,185.30

Finding the Fourth Proportional to 780,349.74, 1,076,879.50 and 436,185.30

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Solution

The fourth proportional to 780,349.74, 1,076,879.50 and 436,185.30 is: 601,933.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,349.74 : 1,076,879.50 = 436,185.30 : x
  2. Step 2: Convert to fraction form
    780,349.74/1,076,879.50 = 436,185.30/x
  3. Step 3: Cross multiply
    780,349.74x = 1,076,879.50 × 436,185.30
  4. Step 4: Simplify right side
    780,349.74x = 469,719,007,771.35
  5. Step 5: Solve for x
    x = 469,719,007,771.35/780,349.74
  6. Step 6: Final answer
    x = 601,933.96

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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.