Home / 721,605.72-1,082,386.26-342,799.14

Finding the Fourth Proportional to 721,605.72, 1,082,386.26 and 342,799.14

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Solution

The fourth proportional to 721,605.72, 1,082,386.26 and 342,799.14 is: 514,188.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,605.72 : 1,082,386.26 = 342,799.14 : x
  2. Step 2: Convert to fraction form
    721,605.72/1,082,386.26 = 342,799.14/x
  3. Step 3: Cross multiply
    721,605.72x = 1,082,386.26 × 342,799.14
  4. Step 4: Simplify right side
    721,605.72x = 371,041,079,075.82
  5. Step 5: Solve for x
    x = 371,041,079,075.82/721,605.72
  6. Step 6: Final answer
    x = 514,188.11

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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.