Home / 458,972.10-688,220.46-206,034.72

Finding the Fourth Proportional to 458,972.10, 688,220.46 and 206,034.72

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Solution

The fourth proportional to 458,972.10, 688,220.46 and 206,034.72 is: 308,945.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,972.10 : 688,220.46 = 206,034.72 : x
  2. Step 2: Convert to fraction form
    458,972.10/688,220.46 = 206,034.72/x
  3. Step 3: Cross multiply
    458,972.10x = 688,220.46 × 206,034.72
  4. Step 4: Simplify right side
    458,972.10x = 141,797,309,774.37
  5. Step 5: Solve for x
    x = 141,797,309,774.37/458,972.10
  6. Step 6: Final answer
    x = 308,945.38

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1.5x scale

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.