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Finding the Fourth Proportional to 479,300.56, 664,230.90 and 472,535.44

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Solution

The fourth proportional to 479,300.56, 664,230.90 and 472,535.44 is: 654,855.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,300.56 : 664,230.90 = 472,535.44 : x
  2. Step 2: Convert to fraction form
    479,300.56/664,230.90 = 472,535.44/x
  3. Step 3: Cross multiply
    479,300.56x = 664,230.90 × 472,535.44
  4. Step 4: Simplify right side
    479,300.56x = 313,872,638,046.52
  5. Step 5: Solve for x
    x = 313,872,638,046.52/479,300.56
  6. Step 6: Final answer
    x = 654,855.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.