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Finding the Fourth Proportional to 658,208.40, 987,312.60 and 303,914.40

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Solution

The fourth proportional to 658,208.40, 987,312.60 and 303,914.40 is: 455,871.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,208.40 : 987,312.60 = 303,914.40 : x
  2. Step 2: Convert to fraction form
    658,208.40/987,312.60 = 303,914.40/x
  3. Step 3: Cross multiply
    658,208.40x = 987,312.60 × 303,914.40
  4. Step 4: Simplify right side
    658,208.40x = 300,058,516,441.44
  5. Step 5: Solve for x
    x = 300,058,516,441.44/658,208.40
  6. Step 6: Final answer
    x = 455,871.60

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Similar ratio
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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.