Home / 436,216.08-654,330.60-287,409.36

Finding the Fourth Proportional to 436,216.08, 654,330.60 and 287,409.36

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Solution

The fourth proportional to 436,216.08, 654,330.60 and 287,409.36 is: 431,118.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,216.08 : 654,330.60 = 287,409.36 : x
  2. Step 2: Convert to fraction form
    436,216.08/654,330.60 = 287,409.36/x
  3. Step 3: Cross multiply
    436,216.08x = 654,330.60 × 287,409.36
  4. Step 4: Simplify right side
    436,216.08x = 188,060,738,974.42
  5. Step 5: Solve for x
    x = 188,060,738,974.42/436,216.08
  6. Step 6: Final answer
    x = 431,118.31

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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.