Home / 738,910-1,108,020.48-383,828.68

Finding the Fourth Proportional to 738,910, 1,108,020.48 and 383,828.68

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Solution

The fourth proportional to 738,910, 1,108,020.48 and 383,828.68 is: 575,564.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,910 : 1,108,020.48 = 383,828.68 : x
  2. Step 2: Convert to fraction form
    738,910/1,108,020.48 = 383,828.68/x
  3. Step 3: Cross multiply
    738,910x = 1,108,020.48 × 383,828.68
  4. Step 4: Simplify right side
    738,910x = 425,290,038,251.37
  5. Step 5: Solve for x
    x = 425,290,038,251.37/738,910
  6. Step 6: Final answer
    x = 575,564.06

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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.