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Finding the Fourth Proportional to 675,090.72, 931,600.08 and 373,289.76

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Solution

The fourth proportional to 675,090.72, 931,600.08 and 373,289.76 is: 515,125.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    675,090.72 : 931,600.08 = 373,289.76 : x
  2. Step 2: Convert to fraction form
    675,090.72/931,600.08 = 373,289.76/x
  3. Step 3: Cross multiply
    675,090.72x = 931,600.08 × 373,289.76
  4. Step 4: Simplify right side
    675,090.72x = 347,756,770,279.18
  5. Step 5: Solve for x
    x = 347,756,770,279.18/675,090.72
  6. Step 6: Final answer
    x = 515,125.98

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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.