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Finding the Fourth Proportional to 679,628.70, 937,911.66 and 373,728.27

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Solution

The fourth proportional to 679,628.70, 937,911.66 and 373,728.27 is: 515,758.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,628.70 : 937,911.66 = 373,728.27 : x
  2. Step 2: Convert to fraction form
    679,628.70/937,911.66 = 373,728.27/x
  3. Step 3: Cross multiply
    679,628.70x = 937,911.66 × 373,728.27
  4. Step 4: Simplify right side
    679,628.70x = 350,524,102,104.63
  5. Step 5: Solve for x
    x = 350,524,102,104.63/679,628.70
  6. Step 6: Final answer
    x = 515,758.24

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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.