Home / 669,757.80-1,004,747.40-310,287.90

Finding the Fourth Proportional to 669,757.80, 1,004,747.40 and 310,287.90

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Solution

The fourth proportional to 669,757.80, 1,004,747.40 and 310,287.90 is: 465,483.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,757.80 : 1,004,747.40 = 310,287.90 : x
  2. Step 2: Convert to fraction form
    669,757.80/1,004,747.40 = 310,287.90/x
  3. Step 3: Cross multiply
    669,757.80x = 1,004,747.40 × 310,287.90
  4. Step 4: Simplify right side
    669,757.80x = 311,760,960,776.46
  5. Step 5: Solve for x
    x = 311,760,960,776.46/669,757.80
  6. Step 6: Final answer
    x = 465,483.14

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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.