Home / 512,432.18-769,114.73-272,747.31

Finding the Fourth Proportional to 512,432.18, 769,114.73 and 272,747.31

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Solution

The fourth proportional to 512,432.18, 769,114.73 and 272,747.31 is: 409,369.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,432.18 : 769,114.73 = 272,747.31 : x
  2. Step 2: Convert to fraction form
    512,432.18/769,114.73 = 272,747.31/x
  3. Step 3: Cross multiply
    512,432.18x = 769,114.73 × 272,747.31
  4. Step 4: Simplify right side
    512,432.18x = 209,773,973,688.88
  5. Step 5: Solve for x
    x = 209,773,973,688.88/512,432.18
  6. Step 6: Final answer
    x = 409,369.24

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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.