Home / 722,405.22-996,875.40-400,096.09

Finding the Fourth Proportional to 722,405.22, 996,875.40 and 400,096.09

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Solution

The fourth proportional to 722,405.22, 996,875.40 and 400,096.09 is: 552,108.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,405.22 : 996,875.40 = 400,096.09 : x
  2. Step 2: Convert to fraction form
    722,405.22/996,875.40 = 400,096.09/x
  3. Step 3: Cross multiply
    722,405.22x = 996,875.40 × 400,096.09
  4. Step 4: Simplify right side
    722,405.22x = 398,845,949,757.19
  5. Step 5: Solve for x
    x = 398,845,949,757.19/722,405.22
  6. Step 6: Final answer
    x = 552,108.34

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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.