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Finding the Fourth Proportional to 530,076.64, 731,492.58 and 303,707.56

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Solution

The fourth proportional to 530,076.64, 731,492.58 and 303,707.56 is: 419,108.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,076.64 : 731,492.58 = 303,707.56 : x
  2. Step 2: Convert to fraction form
    530,076.64/731,492.58 = 303,707.56/x
  3. Step 3: Cross multiply
    530,076.64x = 731,492.58 × 303,707.56
  4. Step 4: Simplify right side
    530,076.64x = 222,159,826,629.91
  5. Step 5: Solve for x
    x = 222,159,826,629.91/530,076.64
  6. Step 6: Final answer
    x = 419,108.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.