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Finding the Fourth Proportional to 656,738.40, 985,107.60 and 376,024.80

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Solution

The fourth proportional to 656,738.40, 985,107.60 and 376,024.80 is: 564,037.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,738.40 : 985,107.60 = 376,024.80 : x
  2. Step 2: Convert to fraction form
    656,738.40/985,107.60 = 376,024.80/x
  3. Step 3: Cross multiply
    656,738.40x = 985,107.60 × 376,024.80
  4. Step 4: Simplify right side
    656,738.40x = 370,424,888,268.48
  5. Step 5: Solve for x
    x = 370,424,888,268.48/656,738.40
  6. Step 6: Final answer
    x = 564,037.20

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.