Home / 501,423.89-691,961.54-271,980.25

Finding the Fourth Proportional to 501,423.89, 691,961.54 and 271,980.25

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Solution

The fourth proportional to 501,423.89, 691,961.54 and 271,980.25 is: 375,330.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,423.89 : 691,961.54 = 271,980.25 : x
  2. Step 2: Convert to fraction form
    501,423.89/691,961.54 = 271,980.25/x
  3. Step 3: Cross multiply
    501,423.89x = 691,961.54 × 271,980.25
  4. Step 4: Simplify right side
    501,423.89x = 188,199,869,549.78
  5. Step 5: Solve for x
    x = 188,199,869,549.78/501,423.89
  6. Step 6: Final answer
    x = 375,330.88

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1.5x scale

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.