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Finding the Fourth Proportional to 552,007.70, 828,011.55 and 172,960.10

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Solution

The fourth proportional to 552,007.70, 828,011.55 and 172,960.10 is: 259,440.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,007.70 : 828,011.55 = 172,960.10 : x
  2. Step 2: Convert to fraction form
    552,007.70/828,011.55 = 172,960.10/x
  3. Step 3: Cross multiply
    552,007.70x = 828,011.55 × 172,960.10
  4. Step 4: Simplify right side
    552,007.70x = 143,212,960,489.16
  5. Step 5: Solve for x
    x = 143,212,960,489.16/552,007.70
  6. Step 6: Final answer
    x = 259,440.15

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Similar ratio
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1.5x scale

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.