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Finding the Fourth Proportional to 539,125.20, 809,562.60 and 302,929.20

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Solution

The fourth proportional to 539,125.20, 809,562.60 and 302,929.20 is: 454,885.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,125.20 : 809,562.60 = 302,929.20 : x
  2. Step 2: Convert to fraction form
    539,125.20/809,562.60 = 302,929.20/x
  3. Step 3: Cross multiply
    539,125.20x = 809,562.60 × 302,929.20
  4. Step 4: Simplify right side
    539,125.20x = 245,240,150,767.92
  5. Step 5: Solve for x
    x = 245,240,150,767.92/539,125.20
  6. Step 6: Final answer
    x = 454,885.34

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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.