Home / 1,329,419.40-1,993,898.70-487,537.80

Finding the Fourth Proportional to 1,329,419.40, 1,993,898.70 and 487,537.80

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Solution

The fourth proportional to 1,329,419.40, 1,993,898.70 and 487,537.80 is: 731,222.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,329,419.40 : 1,993,898.70 = 487,537.80 : x
  2. Step 2: Convert to fraction form
    1,329,419.40/1,993,898.70 = 487,537.80/x
  3. Step 3: Cross multiply
    1,329,419.40x = 1,993,898.70 × 487,537.80
  4. Step 4: Simplify right side
    1,329,419.40x = 972,100,985,620.86
  5. Step 5: Solve for x
    x = 972,100,985,620.86/1,329,419.40
  6. Step 6: Final answer
    x = 731,222.21

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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.