Home / 927,135.60-1,389,090.60-427,474.80

Finding the Fourth Proportional to 927,135.60, 1,389,090.60 and 427,474.80

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Solution

The fourth proportional to 927,135.60, 1,389,090.60 and 427,474.80 is: 640,468.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    927,135.60 : 1,389,090.60 = 427,474.80 : x
  2. Step 2: Convert to fraction form
    927,135.60/1,389,090.60 = 427,474.80/x
  3. Step 3: Cross multiply
    927,135.60x = 1,389,090.60 × 427,474.80
  4. Step 4: Simplify right side
    927,135.60x = 593,801,226,416.88
  5. Step 5: Solve for x
    x = 593,801,226,416.88/927,135.60
  6. Step 6: Final answer
    x = 640,468.59

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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.