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Finding the Fourth Proportional to 575,856.89, 863,785.16 and 309,250.65

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Solution

The fourth proportional to 575,856.89, 863,785.16 and 309,250.65 is: 463,875.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,856.89 : 863,785.16 = 309,250.65 : x
  2. Step 2: Convert to fraction form
    575,856.89/863,785.16 = 309,250.65/x
  3. Step 3: Cross multiply
    575,856.89x = 863,785.16 × 309,250.65
  4. Step 4: Simplify right side
    575,856.89x = 267,126,122,190.35
  5. Step 5: Solve for x
    x = 267,126,122,190.35/575,856.89
  6. Step 6: Final answer
    x = 463,875.88

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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.