Home / 1,021,171.15-1,531,814.33-311,222.35

Finding the Fourth Proportional to 1,021,171.15, 1,531,814.33 and 311,222.35

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Solution

The fourth proportional to 1,021,171.15, 1,531,814.33 and 311,222.35 is: 466,851.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,021,171.15 : 1,531,814.33 = 311,222.35 : x
  2. Step 2: Convert to fraction form
    1,021,171.15/1,531,814.33 = 311,222.35/x
  3. Step 3: Cross multiply
    1,021,171.15x = 1,531,814.33 × 311,222.35
  4. Step 4: Simplify right side
    1,021,171.15x = 476,734,855,546.28
  5. Step 5: Solve for x
    x = 476,734,855,546.28/1,021,171.15
  6. Step 6: Final answer
    x = 466,851.08

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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.