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Finding the Fourth Proportional to 607,636.92, 911,244.18 and 338,176.20

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Solution

The fourth proportional to 607,636.92, 911,244.18 and 338,176.20 is: 507,146.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,636.92 : 911,244.18 = 338,176.20 : x
  2. Step 2: Convert to fraction form
    607,636.92/911,244.18 = 338,176.20/x
  3. Step 3: Cross multiply
    607,636.92x = 911,244.18 × 338,176.20
  4. Step 4: Simplify right side
    607,636.92x = 308,161,094,064.52
  5. Step 5: Solve for x
    x = 308,161,094,064.52/607,636.92
  6. Step 6: Final answer
    x = 507,146.76

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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.