Home / 669,812.20-1,004,426.70-220,359.40

Finding the Fourth Proportional to 669,812.20, 1,004,426.70 and 220,359.40

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Solution

The fourth proportional to 669,812.20, 1,004,426.70 and 220,359.40 is: 330,443.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,812.20 : 1,004,426.70 = 220,359.40 : x
  2. Step 2: Convert to fraction form
    669,812.20/1,004,426.70 = 220,359.40/x
  3. Step 3: Cross multiply
    669,812.20x = 1,004,426.70 × 220,359.40
  4. Step 4: Simplify right side
    669,812.20x = 221,334,864,955.98
  5. Step 5: Solve for x
    x = 221,334,864,955.98/669,812.20
  6. Step 6: Final answer
    x = 330,443.17

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1.5x scale

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.