Home / 721,608.72-1,082,390.76-342,802.14

Finding the Fourth Proportional to 721,608.72, 1,082,390.76 and 342,802.14

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Solution

The fourth proportional to 721,608.72, 1,082,390.76 and 342,802.14 is: 514,192.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,608.72 : 1,082,390.76 = 342,802.14 : x
  2. Step 2: Convert to fraction form
    721,608.72/1,082,390.76 = 342,802.14/x
  3. Step 3: Cross multiply
    721,608.72x = 1,082,390.76 × 342,802.14
  4. Step 4: Simplify right side
    721,608.72x = 371,045,868,844.23
  5. Step 5: Solve for x
    x = 371,045,868,844.23/721,608.72
  6. Step 6: Final answer
    x = 514,192.61

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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.