Home / 848,321.34-1,272,448.80-287,355.84

Finding the Fourth Proportional to 848,321.34, 1,272,448.80 and 287,355.84

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Solution

The fourth proportional to 848,321.34, 1,272,448.80 and 287,355.84 is: 431,022.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    848,321.34 : 1,272,448.80 = 287,355.84 : x
  2. Step 2: Convert to fraction form
    848,321.34/1,272,448.80 = 287,355.84/x
  3. Step 3: Cross multiply
    848,321.34x = 1,272,448.80 × 287,355.84
  4. Step 4: Simplify right side
    848,321.34x = 365,645,593,780.99
  5. Step 5: Solve for x
    x = 365,645,593,780.99/848,321.34
  6. Step 6: Final answer
    x = 431,022.51

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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.