Home / 641,980.10-962,967.87-192,699.02

Finding the Fourth Proportional to 641,980.10, 962,967.87 and 192,699.02

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Solution

The fourth proportional to 641,980.10, 962,967.87 and 192,699.02 is: 289,047.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,980.10 : 962,967.87 = 192,699.02 : x
  2. Step 2: Convert to fraction form
    641,980.10/962,967.87 = 192,699.02/x
  3. Step 3: Cross multiply
    641,980.10x = 962,967.87 × 192,699.02
  4. Step 4: Simplify right side
    641,980.10x = 185,562,964,840.49
  5. Step 5: Solve for x
    x = 185,562,964,840.49/641,980.10
  6. Step 6: Final answer
    x = 289,047.85

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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.