Home / 921,838.68-1,383,039.90-472,876.74

Finding the Fourth Proportional to 921,838.68, 1,383,039.90 and 472,876.74

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Solution

The fourth proportional to 921,838.68, 1,383,039.90 and 472,876.74 is: 709,459.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,838.68 : 1,383,039.90 = 472,876.74 : x
  2. Step 2: Convert to fraction form
    921,838.68/1,383,039.90 = 472,876.74/x
  3. Step 3: Cross multiply
    921,838.68x = 1,383,039.90 × 472,876.74
  4. Step 4: Simplify right side
    921,838.68x = 654,007,399,201.93
  5. Step 5: Solve for x
    x = 654,007,399,201.93/921,838.68
  6. Step 6: Final answer
    x = 709,459.71

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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.