Home / 721,788.14-1,082,366.04-342,817.22

Finding the Fourth Proportional to 721,788.14, 1,082,366.04 and 342,817.22

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Solution

The fourth proportional to 721,788.14, 1,082,366.04 and 342,817.22 is: 514,075.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,788.14 : 1,082,366.04 = 342,817.22 : x
  2. Step 2: Convert to fraction form
    721,788.14/1,082,366.04 = 342,817.22/x
  3. Step 3: Cross multiply
    721,788.14x = 1,082,366.04 × 342,817.22
  4. Step 4: Simplify right side
    721,788.14x = 371,053,716,855.21
  5. Step 5: Solve for x
    x = 371,053,716,855.21/721,788.14
  6. Step 6: Final answer
    x = 514,075.66

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Double scale
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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.