Home / 520,372.41-718,150.23-290,974.38

Finding the Fourth Proportional to 520,372.41, 718,150.23 and 290,974.38

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Solution

The fourth proportional to 520,372.41, 718,150.23 and 290,974.38 is: 401,564.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,372.41 : 718,150.23 = 290,974.38 : x
  2. Step 2: Convert to fraction form
    520,372.41/718,150.23 = 290,974.38/x
  3. Step 3: Cross multiply
    520,372.41x = 718,150.23 × 290,974.38
  4. Step 4: Simplify right side
    520,372.41x = 208,963,317,921.11
  5. Step 5: Solve for x
    x = 208,963,317,921.11/520,372.41
  6. Step 6: Final answer
    x = 401,564.94

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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.