Home / 762,129.11-1,143,636.53-341,404.98

Finding the Fourth Proportional to 762,129.11, 1,143,636.53 and 341,404.98

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Solution

The fourth proportional to 762,129.11, 1,143,636.53 and 341,404.98 is: 512,305.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    762,129.11 : 1,143,636.53 = 341,404.98 : x
  2. Step 2: Convert to fraction form
    762,129.11/1,143,636.53 = 341,404.98/x
  3. Step 3: Cross multiply
    762,129.11x = 1,143,636.53 × 341,404.98
  4. Step 4: Simplify right side
    762,129.11x = 390,443,206,441.18
  5. Step 5: Solve for x
    x = 390,443,206,441.18/762,129.11
  6. Step 6: Final answer
    x = 512,305.86

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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.