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Finding the Fourth Proportional to 518,624.08, 777,492.39 and 199,005.31

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Solution

The fourth proportional to 518,624.08, 777,492.39 and 199,005.31 is: 298,337.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,624.08 : 777,492.39 = 199,005.31 : x
  2. Step 2: Convert to fraction form
    518,624.08/777,492.39 = 199,005.31/x
  3. Step 3: Cross multiply
    518,624.08x = 777,492.39 × 199,005.31
  4. Step 4: Simplify right side
    518,624.08x = 154,725,114,094.59
  5. Step 5: Solve for x
    x = 154,725,114,094.59/518,624.08
  6. Step 6: Final answer
    x = 298,337.70

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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.