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Finding the Fourth Proportional to 630,222.84, 944,400.60 and 518,695.56

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Solution

The fourth proportional to 630,222.84, 944,400.60 and 518,695.56 is: 777,274.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,222.84 : 944,400.60 = 518,695.56 : x
  2. Step 2: Convert to fraction form
    630,222.84/944,400.60 = 518,695.56/x
  3. Step 3: Cross multiply
    630,222.84x = 944,400.60 × 518,695.56
  4. Step 4: Simplify right side
    630,222.84x = 489,856,398,081.34
  5. Step 5: Solve for x
    x = 489,856,398,081.34/630,222.84
  6. Step 6: Final answer
    x = 777,274.90

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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.