Home / 1,021,171.65-1,531,815.08-311,222.85

Finding the Fourth Proportional to 1,021,171.65, 1,531,815.08 and 311,222.85

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Solution

The fourth proportional to 1,021,171.65, 1,531,815.08 and 311,222.85 is: 466,851.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,021,171.65 : 1,531,815.08 = 311,222.85 : x
  2. Step 2: Convert to fraction form
    1,021,171.65/1,531,815.08 = 311,222.85/x
  3. Step 3: Cross multiply
    1,021,171.65x = 1,531,815.08 × 311,222.85
  4. Step 4: Simplify right side
    1,021,171.65x = 476,735,853,314.46
  5. Step 5: Solve for x
    x = 476,735,853,314.46/1,021,171.65
  6. Step 6: Final answer
    x = 466,851.83

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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.