Home / 437,637.20-656,455.80-280,043.60

Finding the Fourth Proportional to 437,637.20, 656,455.80 and 280,043.60

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Solution

The fourth proportional to 437,637.20, 656,455.80 and 280,043.60 is: 420,065.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,637.20 : 656,455.80 = 280,043.60 : x
  2. Step 2: Convert to fraction form
    437,637.20/656,455.80 = 280,043.60/x
  3. Step 3: Cross multiply
    437,637.20x = 656,455.80 × 280,043.60
  4. Step 4: Simplify right side
    437,637.20x = 183,836,245,472.88
  5. Step 5: Solve for x
    x = 183,836,245,472.88/437,637.20
  6. Step 6: Final answer
    x = 420,065.40

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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.