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Finding the Fourth Proportional to 780,261, 1,076,847.84 and 440,751.12

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Solution

The fourth proportional to 780,261, 1,076,847.84 and 440,751.12 is: 608,286.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,261 : 1,076,847.84 = 440,751.12 : x
  2. Step 2: Convert to fraction form
    780,261/1,076,847.84 = 440,751.12/x
  3. Step 3: Cross multiply
    780,261x = 1,076,847.84 × 440,751.12
  4. Step 4: Simplify right side
    780,261x = 474,621,891,549.58
  5. Step 5: Solve for x
    x = 474,621,891,549.58/780,261
  6. Step 6: Final answer
    x = 608,286.06

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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.