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Finding the Fourth Proportional to 552,779.24, 762,826.41 and 311,061.67

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Solution

The fourth proportional to 552,779.24, 762,826.41 and 311,061.67 is: 429,260.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,779.24 : 762,826.41 = 311,061.67 : x
  2. Step 2: Convert to fraction form
    552,779.24/762,826.41 = 311,061.67/x
  3. Step 3: Cross multiply
    552,779.24x = 762,826.41 × 311,061.67
  4. Step 4: Simplify right side
    552,779.24x = 237,286,055,107.64
  5. Step 5: Solve for x
    x = 237,286,055,107.64/552,779.24
  6. Step 6: Final answer
    x = 429,260.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.