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Finding the Fourth Proportional to 539,008.90, 809,096.55 and 302,812.90

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Solution

The fourth proportional to 539,008.90, 809,096.55 and 302,812.90 is: 454,546.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,008.90 : 809,096.55 = 302,812.90 : x
  2. Step 2: Convert to fraction form
    539,008.90/809,096.55 = 302,812.90/x
  3. Step 3: Cross multiply
    539,008.90x = 809,096.55 × 302,812.90
  4. Step 4: Simplify right side
    539,008.90x = 245,004,872,685.50
  5. Step 5: Solve for x
    x = 245,004,872,685.50/539,008.90
  6. Step 6: Final answer
    x = 454,546.99

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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.