Home / 1,329,670-1,995,620.82-690,366.16

Finding the Fourth Proportional to 1,329,670, 1,995,620.82 and 690,366.16

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Solution

The fourth proportional to 1,329,670, 1,995,620.82 and 690,366.16 is: 1,036,128.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,329,670 : 1,995,620.82 = 690,366.16 : x
  2. Step 2: Convert to fraction form
    1,329,670/1,995,620.82 = 690,366.16/x
  3. Step 3: Cross multiply
    1,329,670x = 1,995,620.82 × 690,366.16
  4. Step 4: Simplify right side
    1,329,670x = 1,377,709,082,319.45
  5. Step 5: Solve for x
    x = 1,377,709,082,319.45/1,329,670
  6. Step 6: Final answer
    x = 1,036,128.57

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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.