Home / 1,019,390.62-1,525,758.80-749,447.38

Finding the Fourth Proportional to 1,019,390.62, 1,525,758.80 and 749,447.38

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Solution

The fourth proportional to 1,019,390.62, 1,525,758.80 and 749,447.38 is: 1,121,724.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,019,390.62 : 1,525,758.80 = 749,447.38 : x
  2. Step 2: Convert to fraction form
    1,019,390.62/1,525,758.80 = 749,447.38/x
  3. Step 3: Cross multiply
    1,019,390.62x = 1,525,758.80 × 749,447.38
  4. Step 4: Simplify right side
    1,019,390.62x = 1,143,475,935,171.94
  5. Step 5: Solve for x
    x = 1,143,475,935,171.94/1,019,390.62
  6. Step 6: Final answer
    x = 1,121,724.99

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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.