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Finding the Fourth Proportional to 501,071.34, 691,477.38 and 274,716.84

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Solution

The fourth proportional to 501,071.34, 691,477.38 and 274,716.84 is: 379,108.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,071.34 : 691,477.38 = 274,716.84 : x
  2. Step 2: Convert to fraction form
    501,071.34/691,477.38 = 274,716.84/x
  3. Step 3: Cross multiply
    501,071.34x = 691,477.38 × 274,716.84
  4. Step 4: Simplify right side
    501,071.34x = 189,960,480,765.08
  5. Step 5: Solve for x
    x = 189,960,480,765.08/501,071.34
  6. Step 6: Final answer
    x = 379,108.65

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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.