Home / 1,021,328.52-1,531,992.77-311,350.41

Finding the Fourth Proportional to 1,021,328.52, 1,531,992.77 and 311,350.41

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Solution

The fourth proportional to 1,021,328.52, 1,531,992.77 and 311,350.41 is: 467,025.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,021,328.52 : 1,531,992.77 = 311,350.41 : x
  2. Step 2: Convert to fraction form
    1,021,328.52/1,531,992.77 = 311,350.41/x
  3. Step 3: Cross multiply
    1,021,328.52x = 1,531,992.77 × 311,350.41
  4. Step 4: Simplify right side
    1,021,328.52x = 476,986,575,499.78
  5. Step 5: Solve for x
    x = 476,986,575,499.78/1,021,328.52
  6. Step 6: Final answer
    x = 467,025.61

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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.