Home / 540,829.20-809,688.60-330,877.20

Finding the Fourth Proportional to 540,829.20, 809,688.60 and 330,877.20

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Solution

The fourth proportional to 540,829.20, 809,688.60 and 330,877.20 is: 495,364.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,829.20 : 809,688.60 = 330,877.20 : x
  2. Step 2: Convert to fraction form
    540,829.20/809,688.60 = 330,877.20/x
  3. Step 3: Cross multiply
    540,829.20x = 809,688.60 × 330,877.20
  4. Step 4: Simplify right side
    540,829.20x = 267,907,496,839.92
  5. Step 5: Solve for x
    x = 267,907,496,839.92/540,829.20
  6. Step 6: Final answer
    x = 495,364.33

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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.