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Finding the Fourth Proportional to 553,023.60, 829,178.28 and 303,638.64

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Solution

The fourth proportional to 553,023.60, 829,178.28 and 303,638.64 is: 455,261.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,023.60 : 829,178.28 = 303,638.64 : x
  2. Step 2: Convert to fraction form
    553,023.60/829,178.28 = 303,638.64/x
  3. Step 3: Cross multiply
    553,023.60x = 829,178.28 × 303,638.64
  4. Step 4: Simplify right side
    553,023.60x = 251,770,565,256.74
  5. Step 5: Solve for x
    x = 251,770,565,256.74/553,023.60
  6. Step 6: Final answer
    x = 455,261.88

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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.