Home / 385,001.20-576,845.70-328,576.60

Finding the Fourth Proportional to 385,001.20, 576,845.70 and 328,576.60

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Solution

The fourth proportional to 385,001.20, 576,845.70 and 328,576.60 is: 492,304.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,001.20 : 576,845.70 = 328,576.60 : x
  2. Step 2: Convert to fraction form
    385,001.20/576,845.70 = 328,576.60/x
  3. Step 3: Cross multiply
    385,001.20x = 576,845.70 × 328,576.60
  4. Step 4: Simplify right side
    385,001.20x = 189,537,998,830.62
  5. Step 5: Solve for x
    x = 189,537,998,830.62/385,001.20
  6. Step 6: Final answer
    x = 492,304.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.