Home / 780,345.25-1,076,963.97-440,835.37

Finding the Fourth Proportional to 780,345.25, 1,076,963.97 and 440,835.37

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Solution

The fourth proportional to 780,345.25, 1,076,963.97 and 440,835.37 is: 608,402.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,345.25 : 1,076,963.97 = 440,835.37 : x
  2. Step 2: Convert to fraction form
    780,345.25/1,076,963.97 = 440,835.37/x
  3. Step 3: Cross multiply
    780,345.25x = 1,076,963.97 × 440,835.37
  4. Step 4: Simplify right side
    780,345.25x = 474,763,810,191.62
  5. Step 5: Solve for x
    x = 474,763,810,191.62/780,345.25
  6. Step 6: Final answer
    x = 608,402.26

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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.