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Finding the Fourth Proportional to 539,007.40, 809,094.30 and 302,811.40

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Solution

The fourth proportional to 539,007.40, 809,094.30 and 302,811.40 is: 454,544.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,007.40 : 809,094.30 = 302,811.40 : x
  2. Step 2: Convert to fraction form
    539,007.40/809,094.30 = 302,811.40/x
  3. Step 3: Cross multiply
    539,007.40x = 809,094.30 × 302,811.40
  4. Step 4: Simplify right side
    539,007.40x = 245,002,977,715.02
  5. Step 5: Solve for x
    x = 245,002,977,715.02/539,007.40
  6. Step 6: Final answer
    x = 454,544.74

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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.