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Finding the Fourth Proportional to 553,184.40, 827,808.30 and 383,910.60

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Solution

The fourth proportional to 553,184.40, 827,808.30 and 383,910.60 is: 574,499.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,184.40 : 827,808.30 = 383,910.60 : x
  2. Step 2: Convert to fraction form
    553,184.40/827,808.30 = 383,910.60/x
  3. Step 3: Cross multiply
    553,184.40x = 827,808.30 × 383,910.60
  4. Step 4: Simplify right side
    553,184.40x = 317,804,381,137.98
  5. Step 5: Solve for x
    x = 317,804,381,137.98/553,184.40
  6. Step 6: Final answer
    x = 574,499.90

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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.