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Finding the Fourth Proportional to 538,485.26, 743,114.70 and 296,776.52

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Solution

The fourth proportional to 538,485.26, 743,114.70 and 296,776.52 is: 409,554.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,485.26 : 743,114.70 = 296,776.52 : x
  2. Step 2: Convert to fraction form
    538,485.26/743,114.70 = 296,776.52/x
  3. Step 3: Cross multiply
    538,485.26x = 743,114.70 × 296,776.52
  4. Step 4: Simplify right side
    538,485.26x = 220,538,994,626.84
  5. Step 5: Solve for x
    x = 220,538,994,626.84/538,485.26
  6. Step 6: Final answer
    x = 409,554.38

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Double scale
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Similar ratio
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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.