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Finding the Fourth Proportional to 336,487.75, 504,730 and 319,668.91

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Solution

The fourth proportional to 336,487.75, 504,730 and 319,668.91 is: 479,501.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,487.75 : 504,730 = 319,668.91 : x
  2. Step 2: Convert to fraction form
    336,487.75/504,730 = 319,668.91/x
  3. Step 3: Cross multiply
    336,487.75x = 504,730 × 319,668.91
  4. Step 4: Simplify right side
    336,487.75x = 161,346,488,944.30
  5. Step 5: Solve for x
    x = 161,346,488,944.30/336,487.75
  6. Step 6: Final answer
    x = 479,501.82

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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.