Home / 420,584.88-630,886.08-150,730.56

Finding the Fourth Proportional to 420,584.88, 630,886.08 and 150,730.56

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Solution

The fourth proportional to 420,584.88, 630,886.08 and 150,730.56 is: 226,098.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,584.88 : 630,886.08 = 150,730.56 : x
  2. Step 2: Convert to fraction form
    420,584.88/630,886.08 = 150,730.56/x
  3. Step 3: Cross multiply
    420,584.88x = 630,886.08 × 150,730.56
  4. Step 4: Simplify right side
    420,584.88x = 95,093,812,134.60
  5. Step 5: Solve for x
    x = 95,093,812,134.60/420,584.88
  6. Step 6: Final answer
    x = 226,098.98

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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.