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Finding the Fourth Proportional to 675,117.56, 931,659.90 and 373,311.56

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Solution

The fourth proportional to 675,117.56, 931,659.90 and 373,311.56 is: 515,168.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    675,117.56 : 931,659.90 = 373,311.56 : x
  2. Step 2: Convert to fraction form
    675,117.56/931,659.90 = 373,311.56/x
  3. Step 3: Cross multiply
    675,117.56x = 931,659.90 × 373,311.56
  4. Step 4: Simplify right side
    675,117.56x = 347,799,410,658.44
  5. Step 5: Solve for x
    x = 347,799,410,658.44/675,117.56
  6. Step 6: Final answer
    x = 515,168.66

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1.5x scale

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.