Home / 821,316.45-1,133,404.67-458,745.58

Finding the Fourth Proportional to 821,316.45, 1,133,404.67 and 458,745.58

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Solution

The fourth proportional to 821,316.45, 1,133,404.67 and 458,745.58 is: 633,062.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,316.45 : 1,133,404.67 = 458,745.58 : x
  2. Step 2: Convert to fraction form
    821,316.45/1,133,404.67 = 458,745.58/x
  3. Step 3: Cross multiply
    821,316.45x = 1,133,404.67 × 458,745.58
  4. Step 4: Simplify right side
    821,316.45x = 519,944,381,027.21
  5. Step 5: Solve for x
    x = 519,944,381,027.21/821,316.45
  6. Step 6: Final answer
    x = 633,062.18

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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.