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Finding the Fourth Proportional to 722,398.53, 996,917.45 and 435,863.25

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Solution

The fourth proportional to 722,398.53, 996,917.45 and 435,863.25 is: 601,495.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,398.53 : 996,917.45 = 435,863.25 : x
  2. Step 2: Convert to fraction form
    722,398.53/996,917.45 = 435,863.25/x
  3. Step 3: Cross multiply
    722,398.53x = 996,917.45 × 435,863.25
  4. Step 4: Simplify right side
    722,398.53x = 434,519,679,738.71
  5. Step 5: Solve for x
    x = 434,519,679,738.71/722,398.53
  6. Step 6: Final answer
    x = 601,495.80

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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.