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Finding the Fourth Proportional to 559,708.80, 839,563.20 and 322,929.60

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Solution

The fourth proportional to 559,708.80, 839,563.20 and 322,929.60 is: 484,394.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,708.80 : 839,563.20 = 322,929.60 : x
  2. Step 2: Convert to fraction form
    559,708.80/839,563.20 = 322,929.60/x
  3. Step 3: Cross multiply
    559,708.80x = 839,563.20 × 322,929.60
  4. Step 4: Simplify right side
    559,708.80x = 271,119,808,350.72
  5. Step 5: Solve for x
    x = 271,119,808,350.72/559,708.80
  6. Step 6: Final answer
    x = 484,394.40

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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.