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Finding the Fourth Proportional to 722,129, 996,572.26 and 435,642.94

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Solution

The fourth proportional to 722,129, 996,572.26 and 435,642.94 is: 601,207.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,129 : 996,572.26 = 435,642.94 : x
  2. Step 2: Convert to fraction form
    722,129/996,572.26 = 435,642.94/x
  3. Step 3: Cross multiply
    722,129x = 996,572.26 × 435,642.94
  4. Step 4: Simplify right side
    722,129x = 434,149,669,268.84
  5. Step 5: Solve for x
    x = 434,149,669,268.84/722,129
  6. Step 6: Final answer
    x = 601,207.91

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.