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Finding the Fourth Proportional to 491,344.52, 677,814.90 and 300,026.84

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Solution

The fourth proportional to 491,344.52, 677,814.90 and 300,026.84 is: 413,890.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,344.52 : 677,814.90 = 300,026.84 : x
  2. Step 2: Convert to fraction form
    491,344.52/677,814.90 = 300,026.84/x
  3. Step 3: Cross multiply
    491,344.52x = 677,814.90 × 300,026.84
  4. Step 4: Simplify right side
    491,344.52x = 203,362,662,551.92
  5. Step 5: Solve for x
    x = 203,362,662,551.92/491,344.52
  6. Step 6: Final answer
    x = 413,890.16

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1.5x scale

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.