Home / 458,488.17-686,837.60-300,236.85

Finding the Fourth Proportional to 458,488.17, 686,837.60 and 300,236.85

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Solution

The fourth proportional to 458,488.17, 686,837.60 and 300,236.85 is: 449,769.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,488.17 : 686,837.60 = 300,236.85 : x
  2. Step 2: Convert to fraction form
    458,488.17/686,837.60 = 300,236.85/x
  3. Step 3: Cross multiply
    458,488.17x = 686,837.60 × 300,236.85
  4. Step 4: Simplify right side
    458,488.17x = 206,213,952,550.19
  5. Step 5: Solve for x
    x = 206,213,952,550.19/458,488.17
  6. Step 6: Final answer
    x = 449,769.41

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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.