Home / 1,624.05-2,435.90-469.80

Finding the Fourth Proportional to 1,624.05, 2,435.90 and 469.80

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Solution

The fourth proportional to 1,624.05, 2,435.90 and 469.80 is: 704.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,624.05 : 2,435.90 = 469.80 : x
  2. Step 2: Convert to fraction form
    1,624.05/2,435.90 = 469.80/x
  3. Step 3: Cross multiply
    1,624.05x = 2,435.90 × 469.80
  4. Step 4: Simplify right side
    1,624.05x = 1,144,383.47
  5. Step 5: Solve for x
    x = 1,144,383.47/1,624.05
  6. Step 6: Final answer
    x = 704.65

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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.