Home / 1,021,447.08-1,532,418.78-311,487.72

Finding the Fourth Proportional to 1,021,447.08, 1,532,418.78 and 311,487.72

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Solution

The fourth proportional to 1,021,447.08, 1,532,418.78 and 311,487.72 is: 467,307.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,021,447.08 : 1,532,418.78 = 311,487.72 : x
  2. Step 2: Convert to fraction form
    1,021,447.08/1,532,418.78 = 311,487.72/x
  3. Step 3: Cross multiply
    1,021,447.08x = 1,532,418.78 × 311,487.72
  4. Step 4: Simplify right side
    1,021,447.08x = 477,329,631,867.38
  5. Step 5: Solve for x
    x = 477,329,631,867.38/1,021,447.08
  6. Step 6: Final answer
    x = 467,307.26

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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.