Home / 669,783.80-1,004,786.40-310,313.90

Finding the Fourth Proportional to 669,783.80, 1,004,786.40 and 310,313.90

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Solution

The fourth proportional to 669,783.80, 1,004,786.40 and 310,313.90 is: 465,522.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,783.80 : 1,004,786.40 = 310,313.90 : x
  2. Step 2: Convert to fraction form
    669,783.80/1,004,786.40 = 310,313.90/x
  3. Step 3: Cross multiply
    669,783.80x = 1,004,786.40 × 310,313.90
  4. Step 4: Simplify right side
    669,783.80x = 311,799,186,450.96
  5. Step 5: Solve for x
    x = 311,799,186,450.96/669,783.80
  6. Step 6: Final answer
    x = 465,522.14

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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.