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Finding the Fourth Proportional to 552,401.20, 828,018.60 and 215,311.60

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Solution

The fourth proportional to 552,401.20, 828,018.60 and 215,311.60 is: 322,740.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,401.20 : 828,018.60 = 215,311.60 : x
  2. Step 2: Convert to fraction form
    552,401.20/828,018.60 = 215,311.60/x
  3. Step 3: Cross multiply
    552,401.20x = 828,018.60 × 215,311.60
  4. Step 4: Simplify right side
    552,401.20x = 178,282,009,595.76
  5. Step 5: Solve for x
    x = 178,282,009,595.76/552,401.20
  6. Step 6: Final answer
    x = 322,740.08

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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.