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Finding the Fourth Proportional to 1,333,764.34, 1,840,594.57 and 721,916.94

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Solution

The fourth proportional to 1,333,764.34, 1,840,594.57 and 721,916.94 is: 996,245.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,333,764.34 : 1,840,594.57 = 721,916.94 : x
  2. Step 2: Convert to fraction form
    1,333,764.34/1,840,594.57 = 721,916.94/x
  3. Step 3: Cross multiply
    1,333,764.34x = 1,840,594.57 × 721,916.94
  4. Step 4: Simplify right side
    1,333,764.34x = 1,328,756,399,755.02
  5. Step 5: Solve for x
    x = 1,328,756,399,755.02/1,333,764.34
  6. Step 6: Final answer
    x = 996,245.26

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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.