Home / 395,916.55-546,576.82-309,692.32

Finding the Fourth Proportional to 395,916.55, 546,576.82 and 309,692.32

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Solution

The fourth proportional to 395,916.55, 546,576.82 and 309,692.32 is: 427,541.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,916.55 : 546,576.82 = 309,692.32 : x
  2. Step 2: Convert to fraction form
    395,916.55/546,576.82 = 309,692.32/x
  3. Step 3: Cross multiply
    395,916.55x = 546,576.82 × 309,692.32
  4. Step 4: Simplify right side
    395,916.55x = 169,270,647,323.99
  5. Step 5: Solve for x
    x = 169,270,647,323.99/395,916.55
  6. Step 6: Final answer
    x = 427,541.23

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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.