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Finding the Fourth Proportional to 540,981.20, 809,628.60 and 540,981.20

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Solution

The fourth proportional to 540,981.20, 809,628.60 and 540,981.20 is: 809,628.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,981.20 : 809,628.60 = 540,981.20 : x
  2. Step 2: Convert to fraction form
    540,981.20/809,628.60 = 540,981.20/x
  3. Step 3: Cross multiply
    540,981.20x = 809,628.60 × 540,981.20
  4. Step 4: Simplify right side
    540,981.20x = 437,993,851,582.32
  5. Step 5: Solve for x
    x = 437,993,851,582.32/540,981.20
  6. Step 6: Final answer
    x = 809,628.60

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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.