Home / 916,647.50-1,375,008.51-436,628.54

Finding the Fourth Proportional to 916,647.50, 1,375,008.51 and 436,628.54

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Solution

The fourth proportional to 916,647.50, 1,375,008.51 and 436,628.54 is: 654,960.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,647.50 : 1,375,008.51 = 436,628.54 : x
  2. Step 2: Convert to fraction form
    916,647.50/1,375,008.51 = 436,628.54/x
  3. Step 3: Cross multiply
    916,647.50x = 1,375,008.51 × 436,628.54
  4. Step 4: Simplify right side
    916,647.50x = 600,367,958,208.88
  5. Step 5: Solve for x
    x = 600,367,958,208.88/916,647.50
  6. Step 6: Final answer
    x = 654,960.56

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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.