Home / 436,217.08-654,332.10-287,410.36

Finding the Fourth Proportional to 436,217.08, 654,332.10 and 287,410.36

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Solution

The fourth proportional to 436,217.08, 654,332.10 and 287,410.36 is: 431,119.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,217.08 : 654,332.10 = 287,410.36 : x
  2. Step 2: Convert to fraction form
    436,217.08/654,332.10 = 287,410.36/x
  3. Step 3: Cross multiply
    436,217.08x = 654,332.10 × 287,410.36
  4. Step 4: Simplify right side
    436,217.08x = 188,061,824,420.56
  5. Step 5: Solve for x
    x = 188,061,824,420.56/436,217.08
  6. Step 6: Final answer
    x = 431,119.81

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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.