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Finding the Fourth Proportional to 519,928.82, 717,378.78 and 302,008.04

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Solution

The fourth proportional to 519,928.82, 717,378.78 and 302,008.04 is: 416,699.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,928.82 : 717,378.78 = 302,008.04 : x
  2. Step 2: Convert to fraction form
    519,928.82/717,378.78 = 302,008.04/x
  3. Step 3: Cross multiply
    519,928.82x = 717,378.78 × 302,008.04
  4. Step 4: Simplify right side
    519,928.82x = 216,654,154,188.46
  5. Step 5: Solve for x
    x = 216,654,154,188.46/519,928.82
  6. Step 6: Final answer
    x = 416,699.65

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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.