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Finding the Fourth Proportional to 565,779.02, 781,143.64 and 351,234.32

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Solution

The fourth proportional to 565,779.02, 781,143.64 and 351,234.32 is: 484,932.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,779.02 : 781,143.64 = 351,234.32 : x
  2. Step 2: Convert to fraction form
    565,779.02/781,143.64 = 351,234.32/x
  3. Step 3: Cross multiply
    565,779.02x = 781,143.64 × 351,234.32
  4. Step 4: Simplify right side
    565,779.02x = 274,364,455,217.73
  5. Step 5: Solve for x
    x = 274,364,455,217.73/565,779.02
  6. Step 6: Final answer
    x = 484,932.18

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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.