Home / 738,105.75-1,018,661.18-451,815.03

Finding the Fourth Proportional to 738,105.75, 1,018,661.18 and 451,815.03

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Solution

The fourth proportional to 738,105.75, 1,018,661.18 and 451,815.03 is: 623,550.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,105.75 : 1,018,661.18 = 451,815.03 : x
  2. Step 2: Convert to fraction form
    738,105.75/1,018,661.18 = 451,815.03/x
  3. Step 3: Cross multiply
    738,105.75x = 1,018,661.18 × 451,815.03
  4. Step 4: Simplify right side
    738,105.75x = 460,246,431,601.54
  5. Step 5: Solve for x
    x = 460,246,431,601.54/738,105.75
  6. Step 6: Final answer
    x = 623,550.80

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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.