Home / 432,905.40-648,045.90-327,054.60

Finding the Fourth Proportional to 432,905.40, 648,045.90 and 327,054.60

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Solution

The fourth proportional to 432,905.40, 648,045.90 and 327,054.60 is: 489,590.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,905.40 : 648,045.90 = 327,054.60 : x
  2. Step 2: Convert to fraction form
    432,905.40/648,045.90 = 327,054.60/x
  3. Step 3: Cross multiply
    432,905.40x = 648,045.90 × 327,054.60
  4. Step 4: Simplify right side
    432,905.40x = 211,946,392,606.14
  5. Step 5: Solve for x
    x = 211,946,392,606.14/432,905.40
  6. Step 6: Final answer
    x = 489,590.55

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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.