Home / 1,329,804.46-1,994,986.95-431,176.15

Finding the Fourth Proportional to 1,329,804.46, 1,994,986.95 and 431,176.15

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Solution

The fourth proportional to 1,329,804.46, 1,994,986.95 and 431,176.15 is: 646,855.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,329,804.46 : 1,994,986.95 = 431,176.15 : x
  2. Step 2: Convert to fraction form
    1,329,804.46/1,994,986.95 = 431,176.15/x
  3. Step 3: Cross multiply
    1,329,804.46x = 1,994,986.95 × 431,176.15
  4. Step 4: Simplify right side
    1,329,804.46x = 860,190,780,270.43
  5. Step 5: Solve for x
    x = 860,190,780,270.43/1,329,804.46
  6. Step 6: Final answer
    x = 646,855.09

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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.