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Finding the Fourth Proportional to 630,304.44, 945,464.89 and 209,580.31

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Solution

The fourth proportional to 630,304.44, 945,464.89 and 209,580.31 is: 314,373.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,304.44 : 945,464.89 = 209,580.31 : x
  2. Step 2: Convert to fraction form
    630,304.44/945,464.89 = 209,580.31/x
  3. Step 3: Cross multiply
    630,304.44x = 945,464.89 × 209,580.31
  4. Step 4: Simplify right side
    630,304.44x = 198,150,826,056.08
  5. Step 5: Solve for x
    x = 198,150,826,056.08/630,304.44
  6. Step 6: Final answer
    x = 314,373.20

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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.