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Finding the Fourth Proportional to 493,660.44, 740,476.08 and 426,906.72

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Solution

The fourth proportional to 493,660.44, 740,476.08 and 426,906.72 is: 640,347.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,660.44 : 740,476.08 = 426,906.72 : x
  2. Step 2: Convert to fraction form
    493,660.44/740,476.08 = 426,906.72/x
  3. Step 3: Cross multiply
    493,660.44x = 740,476.08 × 426,906.72
  4. Step 4: Simplify right side
    493,660.44x = 316,114,214,551.26
  5. Step 5: Solve for x
    x = 316,114,214,551.26/493,660.44
  6. Step 6: Final answer
    x = 640,347.47

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1.5x scale

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.