Home / 509,320.08-764,311.80-193,779.72

Finding the Fourth Proportional to 509,320.08, 764,311.80 and 193,779.72

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Solution

The fourth proportional to 509,320.08, 764,311.80 and 193,779.72 is: 290,795.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,320.08 : 764,311.80 = 193,779.72 : x
  2. Step 2: Convert to fraction form
    509,320.08/764,311.80 = 193,779.72/x
  3. Step 3: Cross multiply
    509,320.08x = 764,311.80 × 193,779.72
  4. Step 4: Simplify right side
    509,320.08x = 148,108,126,596.70
  5. Step 5: Solve for x
    x = 148,108,126,596.70/509,320.08
  6. Step 6: Final answer
    x = 290,795.77

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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.