Home / 743,382.56-1,025,868.85-403,850.81

Finding the Fourth Proportional to 743,382.56, 1,025,868.85 and 403,850.81

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Solution

The fourth proportional to 743,382.56, 1,025,868.85 and 403,850.81 is: 557,314.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,382.56 : 1,025,868.85 = 403,850.81 : x
  2. Step 2: Convert to fraction form
    743,382.56/1,025,868.85 = 403,850.81/x
  3. Step 3: Cross multiply
    743,382.56x = 1,025,868.85 × 403,850.81
  4. Step 4: Simplify right side
    743,382.56x = 414,297,967,581.31
  5. Step 5: Solve for x
    x = 414,297,967,581.31/743,382.56
  6. Step 6: Final answer
    x = 557,314.62

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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.