Home / 501,431.12-691,963.08-275,074.64

Finding the Fourth Proportional to 501,431.12, 691,963.08 and 275,074.64

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Solution

The fourth proportional to 501,431.12, 691,963.08 and 275,074.64 is: 379,596.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,431.12 : 691,963.08 = 275,074.64 : x
  2. Step 2: Convert to fraction form
    501,431.12/691,963.08 = 275,074.64/x
  3. Step 3: Cross multiply
    501,431.12x = 691,963.08 × 275,074.64
  4. Step 4: Simplify right side
    501,431.12x = 190,341,495,124.29
  5. Step 5: Solve for x
    x = 190,341,495,124.29/501,431.12
  6. Step 6: Final answer
    x = 379,596.49

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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.