Home / 643,008.14-964,315.23-444,603.50

Finding the Fourth Proportional to 643,008.14, 964,315.23 and 444,603.50

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Solution

The fourth proportional to 643,008.14, 964,315.23 and 444,603.50 is: 666,769.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,008.14 : 964,315.23 = 444,603.50 : x
  2. Step 2: Convert to fraction form
    643,008.14/964,315.23 = 444,603.50/x
  3. Step 3: Cross multiply
    643,008.14x = 964,315.23 × 444,603.50
  4. Step 4: Simplify right side
    643,008.14x = 428,737,923,488.65
  5. Step 5: Solve for x
    x = 428,737,923,488.65/643,008.14
  6. Step 6: Final answer
    x = 666,769.05

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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.