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Finding the Fourth Proportional to 610,299.11, 915,600.86 and 430,735.27

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Solution

The fourth proportional to 610,299.11, 915,600.86 and 430,735.27 is: 646,210.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,299.11 : 915,600.86 = 430,735.27 : x
  2. Step 2: Convert to fraction form
    610,299.11/915,600.86 = 430,735.27/x
  3. Step 3: Cross multiply
    610,299.11x = 915,600.86 × 430,735.27
  4. Step 4: Simplify right side
    610,299.11x = 394,381,583,644.33
  5. Step 5: Solve for x
    x = 394,381,583,644.33/610,299.11
  6. Step 6: Final answer
    x = 646,210.32

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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.