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Finding the Fourth Proportional to 501,305.95, 691,845.94 and 274,995.19

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Solution

The fourth proportional to 501,305.95, 691,845.94 and 274,995.19 is: 379,517.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,305.95 : 691,845.94 = 274,995.19 : x
  2. Step 2: Convert to fraction form
    501,305.95/691,845.94 = 274,995.19/x
  3. Step 3: Cross multiply
    501,305.95x = 691,845.94 × 274,995.19
  4. Step 4: Simplify right side
    501,305.95x = 190,254,305,721.03
  5. Step 5: Solve for x
    x = 190,254,305,721.03/501,305.95
  6. Step 6: Final answer
    x = 379,517.35

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Double scale
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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.