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Finding the Fourth Proportional to 440,069.20, 660,881.40 and 340,471.60

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Solution

The fourth proportional to 440,069.20, 660,881.40 and 340,471.60 is: 511,309.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,069.20 : 660,881.40 = 340,471.60 : x
  2. Step 2: Convert to fraction form
    440,069.20/660,881.40 = 340,471.60/x
  3. Step 3: Cross multiply
    440,069.20x = 660,881.40 × 340,471.60
  4. Step 4: Simplify right side
    440,069.20x = 225,011,347,668.24
  5. Step 5: Solve for x
    x = 225,011,347,668.24/440,069.20
  6. Step 6: Final answer
    x = 511,309.01

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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.