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Finding the Fourth Proportional to 545,276.83, 818,082.18 and 279,225.72

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Solution

The fourth proportional to 545,276.83, 818,082.18 and 279,225.72 is: 418,924.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,276.83 : 818,082.18 = 279,225.72 : x
  2. Step 2: Convert to fraction form
    545,276.83/818,082.18 = 279,225.72/x
  3. Step 3: Cross multiply
    545,276.83x = 818,082.18 × 279,225.72
  4. Step 4: Simplify right side
    545,276.83x = 228,429,584,333.54
  5. Step 5: Solve for x
    x = 228,429,584,333.54/545,276.83
  6. Step 6: Final answer
    x = 418,924.06

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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.