Home / 722,420.84-996,929.78-395,731.24

Finding the Fourth Proportional to 722,420.84, 996,929.78 and 395,731.24

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Solution

The fourth proportional to 722,420.84, 996,929.78 and 395,731.24 is: 546,103.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,420.84 : 996,929.78 = 395,731.24 : x
  2. Step 2: Convert to fraction form
    722,420.84/996,929.78 = 395,731.24/x
  3. Step 3: Cross multiply
    722,420.84x = 996,929.78 × 395,731.24
  4. Step 4: Simplify right side
    722,420.84x = 394,516,258,032.33
  5. Step 5: Solve for x
    x = 394,516,258,032.33/722,420.84
  6. Step 6: Final answer
    x = 546,103.10

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1.5x scale

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.