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Finding the Fourth Proportional to 658,052.40, 987,224.40 and 516,334.80

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Solution

The fourth proportional to 658,052.40, 987,224.40 and 516,334.80 is: 774,616.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,052.40 : 987,224.40 = 516,334.80 : x
  2. Step 2: Convert to fraction form
    658,052.40/987,224.40 = 516,334.80/x
  3. Step 3: Cross multiply
    658,052.40x = 987,224.40 × 516,334.80
  4. Step 4: Simplify right side
    658,052.40x = 509,738,313,129.12
  5. Step 5: Solve for x
    x = 509,738,313,129.12/658,052.40
  6. Step 6: Final answer
    x = 774,616.60

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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.