Home / 476,965.53-658,068.89-285,909.21

Finding the Fourth Proportional to 476,965.53, 658,068.89 and 285,909.21

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Solution

The fourth proportional to 476,965.53, 658,068.89 and 285,909.21 is: 394,468.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,965.53 : 658,068.89 = 285,909.21 : x
  2. Step 2: Convert to fraction form
    476,965.53/658,068.89 = 285,909.21/x
  3. Step 3: Cross multiply
    476,965.53x = 658,068.89 × 285,909.21
  4. Step 4: Simplify right side
    476,965.53x = 188,147,953,889.91
  5. Step 5: Solve for x
    x = 188,147,953,889.91/476,965.53
  6. Step 6: Final answer
    x = 394,468.66

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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.