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Finding the Fourth Proportional to 559,628.80, 839,443.20 and 322,849.60

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Solution

The fourth proportional to 559,628.80, 839,443.20 and 322,849.60 is: 484,274.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,628.80 : 839,443.20 = 322,849.60 : x
  2. Step 2: Convert to fraction form
    559,628.80/839,443.20 = 322,849.60/x
  3. Step 3: Cross multiply
    559,628.80x = 839,443.20 × 322,849.60
  4. Step 4: Simplify right side
    559,628.80x = 271,013,901,342.72
  5. Step 5: Solve for x
    x = 271,013,901,342.72/559,628.80
  6. Step 6: Final answer
    x = 484,274.40

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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.