Home / 921,814.92-1,383,150.06-389,460.24

Finding the Fourth Proportional to 921,814.92, 1,383,150.06 and 389,460.24

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Solution

The fourth proportional to 921,814.92, 1,383,150.06 and 389,460.24 is: 584,371.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,814.92 : 1,383,150.06 = 389,460.24 : x
  2. Step 2: Convert to fraction form
    921,814.92/1,383,150.06 = 389,460.24/x
  3. Step 3: Cross multiply
    921,814.92x = 1,383,150.06 × 389,460.24
  4. Step 4: Simplify right side
    921,814.92x = 538,681,954,323.61
  5. Step 5: Solve for x
    x = 538,681,954,323.61/921,814.92
  6. Step 6: Final answer
    x = 584,371.05

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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.