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Finding the Fourth Proportional to 680,250.72, 940,040.68 and 510,189.60

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Solution

The fourth proportional to 680,250.72, 940,040.68 and 510,189.60 is: 705,032.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,250.72 : 940,040.68 = 510,189.60 : x
  2. Step 2: Convert to fraction form
    680,250.72/940,040.68 = 510,189.60/x
  3. Step 3: Cross multiply
    680,250.72x = 940,040.68 × 510,189.60
  4. Step 4: Simplify right side
    680,250.72x = 479,598,978,512.93
  5. Step 5: Solve for x
    x = 479,598,978,512.93/680,250.72
  6. Step 6: Final answer
    x = 705,032.67

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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.