Home / 721,696.50-1,082,347.38-401,453.82

Finding the Fourth Proportional to 721,696.50, 1,082,347.38 and 401,453.82

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Solution

The fourth proportional to 721,696.50, 1,082,347.38 and 401,453.82 is: 602,070.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,696.50 : 1,082,347.38 = 401,453.82 : x
  2. Step 2: Convert to fraction form
    721,696.50/1,082,347.38 = 401,453.82/x
  3. Step 3: Cross multiply
    721,696.50x = 1,082,347.38 × 401,453.82
  4. Step 4: Simplify right side
    721,696.50x = 434,512,490,267.99
  5. Step 5: Solve for x
    x = 434,512,490,267.99/721,696.50
  6. Step 6: Final answer
    x = 602,070.94

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.