Home / 780,148.59-1,076,511.82-431,241.88

Finding the Fourth Proportional to 780,148.59, 1,076,511.82 and 431,241.88

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Solution

The fourth proportional to 780,148.59, 1,076,511.82 and 431,241.88 is: 595,062.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,148.59 : 1,076,511.82 = 431,241.88 : x
  2. Step 2: Convert to fraction form
    780,148.59/1,076,511.82 = 431,241.88/x
  3. Step 3: Cross multiply
    780,148.59x = 1,076,511.82 × 431,241.88
  4. Step 4: Simplify right side
    780,148.59x = 464,236,977,329.64
  5. Step 5: Solve for x
    x = 464,236,977,329.64/780,148.59
  6. Step 6: Final answer
    x = 595,062.25

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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.