Home / 721,786.14-1,082,363.04-342,815.22

Finding the Fourth Proportional to 721,786.14, 1,082,363.04 and 342,815.22

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Solution

The fourth proportional to 721,786.14, 1,082,363.04 and 342,815.22 is: 514,072.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,786.14 : 1,082,363.04 = 342,815.22 : x
  2. Step 2: Convert to fraction form
    721,786.14/1,082,363.04 = 342,815.22/x
  3. Step 3: Cross multiply
    721,786.14x = 1,082,363.04 × 342,815.22
  4. Step 4: Simplify right side
    721,786.14x = 371,050,523,677.47
  5. Step 5: Solve for x
    x = 371,050,523,677.47/721,786.14
  6. Step 6: Final answer
    x = 514,072.66

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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.