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Finding the Fourth Proportional to 519,928.88, 717,378.86 and 302,008.10

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Solution

The fourth proportional to 519,928.88, 717,378.86 and 302,008.10 is: 416,699.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,928.88 : 717,378.86 = 302,008.10 : x
  2. Step 2: Convert to fraction form
    519,928.88/717,378.86 = 302,008.10/x
  3. Step 3: Cross multiply
    519,928.88x = 717,378.86 × 302,008.10
  4. Step 4: Simplify right side
    519,928.88x = 216,654,223,656.89
  5. Step 5: Solve for x
    x = 216,654,223,656.89/519,928.88
  6. Step 6: Final answer
    x = 416,699.73

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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.