Home / 669,829.80-1,004,855.40-310,359.90

Finding the Fourth Proportional to 669,829.80, 1,004,855.40 and 310,359.90

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Solution

The fourth proportional to 669,829.80, 1,004,855.40 and 310,359.90 is: 465,591.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,829.80 : 1,004,855.40 = 310,359.90 : x
  2. Step 2: Convert to fraction form
    669,829.80/1,004,855.40 = 310,359.90/x
  3. Step 3: Cross multiply
    669,829.80x = 1,004,855.40 × 310,359.90
  4. Step 4: Simplify right side
    669,829.80x = 311,866,821,458.46
  5. Step 5: Solve for x
    x = 311,866,821,458.46/669,829.80
  6. Step 6: Final answer
    x = 465,591.14

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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.