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Finding the Fourth Proportional to 609,820.21, 915,568.23 and 310,501.93

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Solution

The fourth proportional to 609,820.21, 915,568.23 and 310,501.93 is: 466,179.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,820.21 : 915,568.23 = 310,501.93 : x
  2. Step 2: Convert to fraction form
    609,820.21/915,568.23 = 310,501.93/x
  3. Step 3: Cross multiply
    609,820.21x = 915,568.23 × 310,501.93
  4. Step 4: Simplify right side
    609,820.21x = 284,285,702,461.68
  5. Step 5: Solve for x
    x = 284,285,702,461.68/609,820.21
  6. Step 6: Final answer
    x = 466,179.54

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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.