Home / 437,929.20-656,893.80-280,335.60

Finding the Fourth Proportional to 437,929.20, 656,893.80 and 280,335.60

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Solution

The fourth proportional to 437,929.20, 656,893.80 and 280,335.60 is: 420,503.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,929.20 : 656,893.80 = 280,335.60 : x
  2. Step 2: Convert to fraction form
    437,929.20/656,893.80 = 280,335.60/x
  3. Step 3: Cross multiply
    437,929.20x = 656,893.80 × 280,335.60
  4. Step 4: Simplify right side
    437,929.20x = 184,150,717,559.28
  5. Step 5: Solve for x
    x = 184,150,717,559.28/437,929.20
  6. Step 6: Final answer
    x = 420,503.40

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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.