Home / 518,623.98-777,492.25-199,005.21

Finding the Fourth Proportional to 518,623.98, 777,492.25 and 199,005.21

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Solution

The fourth proportional to 518,623.98, 777,492.25 and 199,005.21 is: 298,337.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,623.98 : 777,492.25 = 199,005.21 : x
  2. Step 2: Convert to fraction form
    518,623.98/777,492.25 = 199,005.21/x
  3. Step 3: Cross multiply
    518,623.98x = 777,492.25 × 199,005.21
  4. Step 4: Simplify right side
    518,623.98x = 154,725,011,648.98
  5. Step 5: Solve for x
    x = 154,725,011,648.98/518,623.98
  6. Step 6: Final answer
    x = 298,337.56

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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.