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Finding the Fourth Proportional to 610,687.72, 915,360.90 and 255,927.16

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Solution

The fourth proportional to 610,687.72, 915,360.90 and 255,927.16 is: 383,609.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,687.72 : 915,360.90 = 255,927.16 : x
  2. Step 2: Convert to fraction form
    610,687.72/915,360.90 = 255,927.16/x
  3. Step 3: Cross multiply
    610,687.72x = 915,360.90 × 255,927.16
  4. Step 4: Simplify right side
    610,687.72x = 234,265,715,512.04
  5. Step 5: Solve for x
    x = 234,265,715,512.04/610,687.72
  6. Step 6: Final answer
    x = 383,609.67

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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.