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Finding the Fourth Proportional to 440,219.20, 660,328.80 and 377,233.60

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Solution

The fourth proportional to 440,219.20, 660,328.80 and 377,233.60 is: 565,850.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,219.20 : 660,328.80 = 377,233.60 : x
  2. Step 2: Convert to fraction form
    440,219.20/660,328.80 = 377,233.60/x
  3. Step 3: Cross multiply
    440,219.20x = 660,328.80 × 377,233.60
  4. Step 4: Simplify right side
    440,219.20x = 249,098,210,407.68
  5. Step 5: Solve for x
    x = 249,098,210,407.68/440,219.20
  6. Step 6: Final answer
    x = 565,850.40

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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.