Home / 1,329,432.85-1,993,730.94-430,666.03

Finding the Fourth Proportional to 1,329,432.85, 1,993,730.94 and 430,666.03

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Solution

The fourth proportional to 1,329,432.85, 1,993,730.94 and 430,666.03 is: 645,863.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,329,432.85 : 1,993,730.94 = 430,666.03 : x
  2. Step 2: Convert to fraction form
    1,329,432.85/1,993,730.94 = 430,666.03/x
  3. Step 3: Cross multiply
    1,329,432.85x = 1,993,730.94 × 430,666.03
  4. Step 4: Simplify right side
    1,329,432.85x = 858,632,188,817.97
  5. Step 5: Solve for x
    x = 858,632,188,817.97/1,329,432.85
  6. Step 6: Final answer
    x = 645,863.53

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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.