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Finding the Fourth Proportional to 630,064.88, 944,028.12 and 380,222

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Solution

The fourth proportional to 630,064.88, 944,028.12 and 380,222 is: 569,687.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,064.88 : 944,028.12 = 380,222 : x
  2. Step 2: Convert to fraction form
    630,064.88/944,028.12 = 380,222/x
  3. Step 3: Cross multiply
    630,064.88x = 944,028.12 × 380,222
  4. Step 4: Simplify right side
    630,064.88x = 358,940,259,842.64
  5. Step 5: Solve for x
    x = 358,940,259,842.64/630,064.88
  6. Step 6: Final answer
    x = 569,687.78

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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.