Home / 721,788.39-1,082,366.42-342,817.47

Finding the Fourth Proportional to 721,788.39, 1,082,366.42 and 342,817.47

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Solution

The fourth proportional to 721,788.39, 1,082,366.42 and 342,817.47 is: 514,076.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,788.39 : 1,082,366.42 = 342,817.47 : x
  2. Step 2: Convert to fraction form
    721,788.39/1,082,366.42 = 342,817.47/x
  3. Step 3: Cross multiply
    721,788.39x = 1,082,366.42 × 342,817.47
  4. Step 4: Simplify right side
    721,788.39x = 371,054,116,003.27
  5. Step 5: Solve for x
    x = 371,054,116,003.27/721,788.39
  6. Step 6: Final answer
    x = 514,076.04

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1.5x scale

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.