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Finding the Fourth Proportional to 604,364.80, 907,245.60 and 324,428.80

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Solution

The fourth proportional to 604,364.80, 907,245.60 and 324,428.80 is: 487,018.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,364.80 : 907,245.60 = 324,428.80 : x
  2. Step 2: Convert to fraction form
    604,364.80/907,245.60 = 324,428.80/x
  3. Step 3: Cross multiply
    604,364.80x = 907,245.60 × 324,428.80
  4. Step 4: Simplify right side
    604,364.80x = 294,336,601,313.28
  5. Step 5: Solve for x
    x = 294,336,601,313.28/604,364.80
  6. Step 6: Final answer
    x = 487,018.11

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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.