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Finding the Fourth Proportional to 722,092.32, 996,502.94 and 395,419.12

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Solution

The fourth proportional to 722,092.32, 996,502.94 and 395,419.12 is: 545,686.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,092.32 : 996,502.94 = 395,419.12 : x
  2. Step 2: Convert to fraction form
    722,092.32/996,502.94 = 395,419.12/x
  3. Step 3: Cross multiply
    722,092.32x = 996,502.94 × 395,419.12
  4. Step 4: Simplify right side
    722,092.32x = 394,036,312,626.68
  5. Step 5: Solve for x
    x = 394,036,312,626.68/722,092.32
  6. Step 6: Final answer
    x = 545,686.89

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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.