Home / 983,511.72-1,474,975.98-422,415

Finding the Fourth Proportional to 983,511.72, 1,474,975.98 and 422,415

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Solution

The fourth proportional to 983,511.72, 1,474,975.98 and 422,415 is: 633,497.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    983,511.72 : 1,474,975.98 = 422,415 : x
  2. Step 2: Convert to fraction form
    983,511.72/1,474,975.98 = 422,415/x
  3. Step 3: Cross multiply
    983,511.72x = 1,474,975.98 × 422,415
  4. Step 4: Simplify right side
    983,511.72x = 623,051,978,591.70
  5. Step 5: Solve for x
    x = 623,051,978,591.70/983,511.72
  6. Step 6: Final answer
    x = 633,497.26

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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.