Home / 721,926.37-996,258.69-395,260.56

Finding the Fourth Proportional to 721,926.37, 996,258.69 and 395,260.56

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Solution

The fourth proportional to 721,926.37, 996,258.69 and 395,260.56 is: 545,459.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,926.37 : 996,258.69 = 395,260.56 : x
  2. Step 2: Convert to fraction form
    721,926.37/996,258.69 = 395,260.56/x
  3. Step 3: Cross multiply
    721,926.37x = 996,258.69 × 395,260.56
  4. Step 4: Simplify right side
    721,926.37x = 393,781,767,714.27
  5. Step 5: Solve for x
    x = 393,781,767,714.27/721,926.37
  6. Step 6: Final answer
    x = 545,459.74

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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.