Home / 921,078.06-1,380,456.08-493,553.58

Finding the Fourth Proportional to 921,078.06, 1,380,456.08 and 493,553.58

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Solution

The fourth proportional to 921,078.06, 1,380,456.08 and 493,553.58 is: 739,708.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,078.06 : 1,380,456.08 = 493,553.58 : x
  2. Step 2: Convert to fraction form
    921,078.06/1,380,456.08 = 493,553.58/x
  3. Step 3: Cross multiply
    921,078.06x = 1,380,456.08 × 493,553.58
  4. Step 4: Simplify right side
    921,078.06x = 681,329,040,316.77
  5. Step 5: Solve for x
    x = 681,329,040,316.77/921,078.06
  6. Step 6: Final answer
    x = 739,708.25

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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.