Home / 1,021,328.27-1,531,992.40-311,350.15

Finding the Fourth Proportional to 1,021,328.27, 1,531,992.40 and 311,350.15

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Solution

The fourth proportional to 1,021,328.27, 1,531,992.40 and 311,350.15 is: 467,025.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,021,328.27 : 1,531,992.40 = 311,350.15 : x
  2. Step 2: Convert to fraction form
    1,021,328.27/1,531,992.40 = 311,350.15/x
  3. Step 3: Cross multiply
    1,021,328.27x = 1,531,992.40 × 311,350.15
  4. Step 4: Simplify right side
    1,021,328.27x = 476,986,063,538.86
  5. Step 5: Solve for x
    x = 476,986,063,538.86/1,021,328.27
  6. Step 6: Final answer
    x = 467,025.22

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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.