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Finding the Fourth Proportional to 559,988.20, 839,982.30 and 349,744.60

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Solution

The fourth proportional to 559,988.20, 839,982.30 and 349,744.60 is: 524,616.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,988.20 : 839,982.30 = 349,744.60 : x
  2. Step 2: Convert to fraction form
    559,988.20/839,982.30 = 349,744.60/x
  3. Step 3: Cross multiply
    559,988.20x = 839,982.30 × 349,744.60
  4. Step 4: Simplify right side
    559,988.20x = 293,779,273,520.58
  5. Step 5: Solve for x
    x = 293,779,273,520.58/559,988.20
  6. Step 6: Final answer
    x = 524,616.90

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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.