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Finding the Fourth Proportional to 496,504.18, 685,155.58 and 281,639.63

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Solution

The fourth proportional to 496,504.18, 685,155.58 and 281,639.63 is: 388,651.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,504.18 : 685,155.58 = 281,639.63 : x
  2. Step 2: Convert to fraction form
    496,504.18/685,155.58 = 281,639.63/x
  3. Step 3: Cross multiply
    496,504.18x = 685,155.58 × 281,639.63
  4. Step 4: Simplify right side
    496,504.18x = 192,966,964,043.64
  5. Step 5: Solve for x
    x = 192,966,964,043.64/496,504.18
  6. Step 6: Final answer
    x = 388,651.24

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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.